Honeybee makes honey from

Read the food items given below.
(i) Wheat 
(ii) Ghee
(iii) lodised salt 
(iv) Spinach (palak)
Which of the above food items are energy giving foods?

Twisting of fibres makes them:

Which among the following are commonly used for making a safety pin?

Corn is separated from husk by the process of

Which of the following organisms is not an omnivore?

Minerals and vitamins present in food are

The correct sequence to get cloth is

Which of the following statements is not true?

The process due to which steam changes into liquid state on cooling

Which of the following has different eating habits compared with the others?

The mineral which controls the functioning of thyroid is

Which statement out of the following is incorrect?

Which of the following items is not soluble in water?

A solution which cannot dissolve more of a given substance at a given temperature is

We get eggs from

Which one of the following food items does not provide dietary fibre?

Separation of seeds from cotton bolls is known as:

Pick one material from the following which is completely soluble in water.

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

One of the following food is not obtained from animals. The food is

Given below are the steps to test the presence of proteins in a food item:
(i) Take a small quantity of the food item in a test tube, add 10 drops of water to it and shake it.
(ii) Make a paste or powder of food to be tested.
(iii) Add 10drops of caustic soda solution to the test tube and shake well.
(iv) Add 2 drops of copper sulphate solution to it.
Which of the following is the correct sequence of the steps?

This is made up of a number of fibres twisted together:

Which of the following does not belong to the group?

The process followed to separate grains form the stalks is called

Iron filings from a tea mixture can be separated by :

Sedimentation is followed by which process?

Clear liquid can be separated from sedimented materials by:

In a solution of salt and water, no more salt can be dissolved. If we want to add more salt, it needs to be

The process of increasing the rate of sedimentation in a suspension by adding some chemical is

Which of the following statements is not true?

Which of the following does not belong to the group?

Which of the following materials is not soluble in water?

The property of a substance that decides whether it will float or sink in water is:

Select the odd one:

Yarn is woven to get fabric using

Which of the following is not a natural fibre?

Boojho went to a cloth shop. There he found a fabric which was smooth to touch, had vibrant colour and shine. The fabric could be

Which part of the jute plant is used for getting jute fibre?

A synthetic fibre is:

Which of the following sources of protein is different from others?

Minerals and vitamins present in food are

Cyanocobalamin is vitamin

Which vitamin deficiency causes rickets?

The energy-providing nutrients are:

Honeybee makes honey from

Select one of the following that is a cereal.

Carrot and radish food obtained from plants are examples of

Below are the names of some animals.
(i) Cow
(ii) Sheep
(iii) Horse
(iv) Ox
Which of the above are the sources of milk for human beings?

Given below is a list of edible plants
(i) Banana
(ii) Pumpkin
(iii) Lady's finger
(iv) Brinjal
Which pair of plants has two or more edible parts?

Given below are the names of some animals.
(i) Goat
(ii) Human beings
(iii) Cockroach
(iv) Eagle
Which of the above animals form a pair of omnivores?

From the given options, choose a food obtained from animals.

The part of a banana plant not used as food is

Given below is a list of edible plants
(i) Banana
(ii) Pumpkin
(iii) Lady's finger
(iv) Brinjal
Which pair of plants has two or more edible parts?

Which among the following is an autotroph?

(a) On which process sprouting is based on?
(b) List benefits of sprouting.

Rajni went to Chennai to visit her friend. She noticed that the climate was very hot and the food available was so different than at home. Coconut is used extensively and rice is included in all meals. Her friend's mother explained these differences to Rajni.
(a) What changes were observed by Rajni in regard with food habits?
(b) Food habits of all places are different. What do you understand by food habits?
(c) List one dish commonly made in South India. Identify its ingredients, and separate plant and animal derived ingredients.
(d) Do you observe any values in Rajni? Name them.

Radha came back from school hungry and went to her mother in kitchen. Radha's mother was peeling vegetables. She noted that the peels were very thick and her mother then started washing vegetables. Radha asked her to stop washing the vegetables. Her mother was surprised and asked why? Radha told her all she knew about how nutrients are washed away if we peel and then wash them?
(a) If thick peels are removed from vegetables, what happens?
(b) Washing of vegetables after peeling is not a good practice. Can you tell why?
(c) What are those components that get washed away?
(d) Give two examples of vitamins and minerals containing food.
(e) Do you think Radha has any values? Name them.

During an educational trip of Class VI, students went to the handloom house. Their science teacher wants to show how fabrics are made from yarn. Children were taking lot of interest in the process of weaving by hathkargha (handloom). Their teacher explained the two types of looms and working of that looms. Some girls learned the process, how two sets of yarns are woven to make a fabric. The trip was very knowledgeable and children enjoyed a lot.
Read the following passage and answer the given questions:
(a) Explain the process of weaving.
(b) Name the device used for making yarns.
(c) What values are shown by teacher and students?

During summer holidays, a group of children collected a lump of salt, green grass, broken glass piece, a small thermocol box, pen, iron nail, glass. marbles, hair, naphthalene ball, a piece of sugar candy (mishri) and tried to group them on the basis of properties given in table. Help them in filling the table.

Give a reason as to why the food culture in different regions of our country is different.

What do we eat? List some common food items, their ingredients and sources.

What are sprouted seeds? How are they eaten?

Tasty food is not always nutritious and nutritious food may not always be tasty to eat. Comment with examples.

Explain the process of making yarn from fibre.

From where do humans obtain their food?

While preparing idli, what major ingredients are used?

Name two plant food items which provide proteins.

Name the problems which occur due to lack of proteins.

What is dehydration? Does body weight of person increase or decrease when suffering from dehydration?

Burning of leaves is harmful. Why? Is burning of leaves considered illegal in India. If no, do you suggest it should be made illegal?

Vermicompost produced from kitchen waste is far more better than chemical fertilisers. Why?

The pie charts A and B shown in the figure are based on waste segregation method adopted by two families X and Y, respectively.

Which of the two families X or Y, do you think is more environmentally conscious and why?

Municipality provides two types of dustbins for garbage collection. One blue coloured and one green coloured. Among the following wastes provided which, waste will you put in which dustbin?
Plastic materials, metal and glass items, waste of plants and animals, peels of fruits and vegetables, dried leaves and twigs, remains of meat like flesh and bones.

Beautiful handcrafted articles like boxes and toys are made up of paper pulp in our country. Can you explain how paper pulp which is made from paper can be used to make hard boxes and other articles?

Akshay went on an adventurous trip with his friends. He went climbing sky diving and underground water diving. He observed that while all the activities were pleasant during water diving, he and his friends felt nauseous and had breathing difficulties. He was aware of same thing happening to his friends a few year back as he was mountain climbing.
(a) Can you suggest a reason behind all the symptoms faced by Akshay and his friends?
(b) How can one recover from this situation?
(c) Give two more special situations where - same symptoms can develop?
(d) If we suffer from breathing problems in deep water. How do plants and animals living in water cope?
(e) Have you observed any good values in Akshay?

Write a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
(a) Oxygen (b) Nitrogen (c) Carbon dioxide

Explain the following observations briefly.
(a) A firki does not rotate in a closed area.
(b) The arrow of weather cock points towards a particular direction at a particular moment.
(c) An empty glass in fact is not empty.
(d) Breathing through mouth may harm you.

Humans and animals use oxygen for respiration and plants require carbon dioxide for photosynthesis. How are these two processes related?

Explain what makes the carbon dioxide gas present in air necessary for all in the atmosphere.

Vineet was feeling very thirsty so he took out some ice cubes to add into water and forgot to keep the ice tray back. After sometime, when he came back he saw all the ice present in tray has changed into water. He got confused and asked his teacher to explain the reason behind it.
(a) Does water exist in any other form?
(b) What happens to ice when kept at room temperature?
(c) What values you observed in Vineet?

Water is one of our most precious commodities and no life can survive without it It has been predicted that water scarcity will become the subject of "Wars"in the near future. Write any two ways in which water is getting polluted. Write any two measures to stop water pollution at your level

Explain the process of cloud formation with the help of diagram.

Most of the water that falls on the land as rain and snow, sooner or later goes back to a sea or an ocean. Explain how it happens.

Draw a diagram to show how sea water reaches a lake or pond?

Three identical bars are kept on a table. Two out of three bars are magnets. In one of the magnets the North-South poles are marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet.

Describe the steps involved in the magnetising of an iron strip with the help of a magnet.

You are provided with two identical metal bars. Out of the two, one is a magnet. Suggest two ways to identify the magnet.

A bar magnet is cut into two pieces A and B from the middle as shown in figure.

Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.

Where are the poles of a bar magnet located? Suggest a method to locate them.

Discuss briefly that how switch works.

Briefly explain about the components present inside the cell.

Explain why all the light bulbs and fans go off if the main switch is turned off in your house.

What is a battery? Explain it with a figure.

In figures A and B, show a bulb connected to a cell in two different ways.
(a) Mention the direction of the current through the bulb in both the cases (Q to P or P to Q)?
(b) Will the bulb glow in both the cases?
(c) Does the brightness of the glowing bulb depend on the direction of current through it?

A torch is placed at two different positions A and B one by one as shown in figure.The shape of the shadow obtained in two positions is shown in the given figure.
Match the position of the torch and shape of the shadow of the ball.

Differentiate between a shadow and an image.

Differentiate between a luminous and non-luminous objects.

Show an experiment which proves that light always travels in a straight line.

Explain with the help of a diagram that how can we see an image behind wall using a periscope.

While travelling in a train, it appears that the trees near the track are moving whereas co-passengers appear to be stationary. Explain the reason.

How are the motions of a wheel of a moving bicycle and a mark on the blade of a moving electric fan different? Explain.

Three students measured the length of a corridor and reported their measurements. The values of their measurements were different. What could be the reason for difference in their measurements? (Mention any three)

It is not accurate to measure a length with elastic tapes. Explain why.

Boojho was riding in his bicycle along a straight road. He classified the motion of various parts of the bicycle as (a) rectilinear motion (b) circular motion and (c) both rectilinear as well as circular motion. Can you list one part of the bicycle for each type of motion? Support your answer with reason.

List the important characteristics of living things which differentiate them from non-living things.

A and B are two animals one is adapted in water and one is adapted to live on land.
Animal A is small having no tail. It has moist, smooth skin and a very long hind legs for leaping.
Animal B is large animal having short legs long jaws and a long tail, leather is made from its skin.
(a) What could be animal A?
(b) Write one water adaptation of animal A.
(c) What could be animal B?

Ravi and Ritu went on a vacation to different places. They went to Rishikesh, Himalayas, Kerala, Rajasthan. They saw many kinds of trees, plants and animals, e.g. pine trees on Himalayas and cactus in Rajasthan. All the places were so, different from each other. They clicked pictures, collected samples and showed it to their teacher asking to explain the reason behind these variations.
(a) Why is there a difference in type of plants growing in different places?
(b) What do you mean by survival place of an organism?
(c) How many types of such places that give living organism shelter, food, etc., are you aware about?
(d) Give an example of variation plants from different regions.
(e) What values do we observe in Ravi and Ritu?

Like many animals although a car also moves it is not considered as a living organism. Give two or three reasons.

Riya lives in Delhi. During her vacations, she went to Leh with her parents. On the way, they all were fine. When they reached Leh, all of them started feeling nauseous and complained of a headache and breathing difficulties. A man travelling with them told them to rest for few days and everything will be fine. After few days, Riya observed that the man was right and they were feeling fine.
(a) Why were Riya and her family suffering with these symptoms?
(b) (i) After 2-3 days everybody was fine. Why?
(ii) Explain what happened?
(c) What values do you feel are present in Ria?

Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

Kavita bought new silver anklets. After a month, she found that the anklets had lost their lustre and turned black. She had doubts that they were not made of pure silver. But her mother told her that they were of pure silver. She washed her silver anklets with lemon juice and found that the silver anklets had get the lustre back.
Read the above passage and answer the following questions.
(a) Do you think that the anklets are not of pure silver?
(b) Why silver anklets lost their lustre after some time?
(c) What values were shown by Kavita's mother?

Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants.

Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties. by which we can prove that these materials are different.

Rohan and his friends planned to play cricket match on sunday morning. But, by chance on saturday, Rohan got high fever. Due to high fever, his parents did not allow him to play cricket. So, Rohan was very upset. But his father suggested to him that he can see the cricket match that his friends were playing in the park through a glass window, although the window will be closed
Read the above passage and answer the following questions.
(a) How Rohan was abie to see the cricket match, although the window was closed?
(b) Write different types of materials based on their transparency.
(c) What values are shown by Rohan's father?.

One day, students were asked to perform an activity. They were told to identify the root system in some given plant samples by analysing the venation in leaves. Archana at the same time failed to do so. She got sad and asked her teacher to guide her after the test.
(a) How will you identify the root system by analysing the leaves?
(b) Distinguish two types of venation in leaves.
(c) What are the values shown by Archana?

Sarita was interested in knowing more about plants and its parts. She started exploring and collecting plants. She wanted to preserve them, so that she can have a good collection of plants.
(a) Suggest the steps to help her in identifying plants.
(b) Is there any other method to identify plants Explain.
(c) What are the values shown by Sarita?

Observe figure and attempt the questions that follow it.

(a) Label the parts (i), (ii), (iii) and (iv) in the figure.
(b) What type of venation does the leaf has?
(c) What type of venation is seen in grass leaves? 

Read the functions of parts of a plant given below:
(a) fixes plant to the soil
(b) prepares starch
(c) takes part in reproduction
(d) supports branches and bears flowers in the diagram given in figure, write the names of the parts whose function you have just read at the appropriate space. 

Observe the figure of an activity given as figure, carried out with leaves of plants and polythene bag. Now answer the following.

(a) Which process is demonstrated in the activity?
(b) When will this activity show better results on a bright sunny day or a cloudy day?
(c) What will you observe in the polythene bag after a few hours of setting up the activity?
(d) Mention anyone precaution you must take, while performing this activity.

Three identical bars are kept on a table. Two out of three bars are magnets. In one of the magnets the North-South poles are marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet.

Describe the steps involved in the magnetising of an iron strip with the help of a magnet.

You are provided with two identical metal bars. Out of the two, one is a magnet. Suggest two ways to identify the magnet.

Given below is a figure which shows a magnetic compass. Briefly explain what will happen to the position of its needle if you bring a bar magnet near it. Also, draw a diagram to show the effect on the needle on bringing the bar magnet near it. Also, draw the diagram to show the effect when the other end of the bar magnet is brought near it.

A bar magnet is cut into two pieces A and B from the middle as shown in figure.

Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.

List the important characteristics of living things which differentiate them from non-living things.

A and B are two animals one is adapted in water and one is adapted to live on land.
Animal A is small having no tail. It has moist, smooth skin and a very long hind legs for leaping.
Animal B is large animal having short legs long jaws and a long tail, leather is made from its skin.
(a) What could be animal A?
(b) Write one water adaptation of animal A.
(c) What could be animal B?

Gimmy went for holidays with her parents for few weeks. She kept a plant in her room and before going away she placed it near her window and water it sufficiently. After her return, she saw that plant in her room has bend towards window from where light was coming. She observed this behaviour and asked her teacher questions about it in the class .
(a) What happened to the plant?
(b) (i) Do ail living things show this characteristic?
     (ii) Give another example showing this characteristic.
(c) From this incident, what values do you think Gimmy has?

Ravi and Ritu went on a vacation to different places. They went to Rishikesh, Himalayas, Kerala, Rajasthan. They saw many kinds of trees, plants and animals, e.g. pine trees on Himalayas and cactus in Rajasthan. All the places were so, different from each other. They clicked pictures, collected samples and showed it to their teacher asking to explain the reason behind these variations.
(a) Why is there a difference in type of plants growing in different places?
(b) What do you mean by survival place of an organism?
(c) How many types of such places that give living organism shelter, food, etc., are you aware about?
(d) Give an example of variation plants from different regions.
(e) What values do we observe in Ravi and Ritu?

Like many animals although a car also moves it is not considered as a living organism. Give two or three reasons.

Burning of leaves is harmful. Why? Is burning of leaves considered illegal in India. If no, do you suggest it should be made illegal?

Vermicompost produced from kitchen waste is far more better than chemical fertilisers. Why?

Municipality provides two types of dustbins for garbage collection. One blue coloured and one green coloured. Among the following wastes provided which, waste will you put in which dustbin?
Plastic materials, metal and glass items, waste of plants and animals, peels of fruits and vegetables, dried leaves and twigs, remains of meat like flesh and bones.

Sachin was in the habit of making aeroplanes with his notebook papers. He used to tear off notebook pages and make paper aeroplanes. One day, his mom objected to this action. He collected all the waste papers and packed them in polybag and threw it outside through the window.
Now, answer the following questions:
(a) Do you think Sachin's action was responsible?
(b) What would you have done if you were in his place?
(c) What values do you observe in Sachin?

Beautiful handcrafted articles like boxes and toys are made up of paper pulp in our country. Can you explain how paper pulp which is made from paper can be used to make hard boxes and other articles?

Akshay went on an adventurous trip with his friends. He went climbing sky diving and underground water diving. He observed that while all the activities were pleasant during water diving, he and his friends felt nauseous and had breathing difficulties. He was aware of same thing happening to his friends a few year back as he was mountain climbing.
(a) Can you suggest a reason behind all the symptoms faced by Akshay and his friends?
(b) How can one recover from this situation?
(c) Give two more special situations where - same symptoms can develop?
(d) If we suffer from breathing problems in deep water. How do plants and animals living in water cope?
(e) Have you observed any good values in Akshay?

Write a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
(a) Oxygen (b) Nitrogen (c) Carbon dioxide

Explain the following observations briefly.
(a) A firki does not rotate in a closed area.
(b) The arrow of weather cock points towards a particular direction at a particular moment.
(c) An empty glass in fact is not empty.
(d) Breathing through mouth may harm you.

Humans and animals use oxygen for respiration and plants require carbon dioxide for photosynthesis. How are these two processes related?

Explain what makes the carbon dioxide gas present in air necessary for all in the atmosphere.

Boojho was having difficulty in seeing things in dim light. The doctor tested his eyesight and prescribed a particular vitamin supplement. He also advised him to include a few food items in his diet.
(a) Which deficiency disease is he suffering from?
(b) Which food component may be lacking in his diet?
(c) Suggest some food items that he should include in his diet. (any four)

Radha came back from school hungry and went to her mother in kitchen. Radha's mother was peeling vegetables. She noted that the peels were very thick and her mother then started washing vegetables. Radha asked her to stop washing the vegetables. Her mother was surprised and asked why? Radha told her all she knew about how nutrients are washed away if we peel and then wash them?
(a) If thick peels are removed from vegetables, what happens?
(b) Washing of vegetables after peeling is not a good practice. Can you tell why?
(c) What are those components that get washed away?
(d) Give two examples of vitamins and minerals containing food.
(e) Do you think Radha has any values? Name them.

Manvi was going to her friend's birthday. She enjoyed parties but today she was not feeling good. When her friend's mother observed this, she asked Manvi whether she is all right. Manvi told her that she has not eaten any food from the morning as she waited for the party. Manvi's friend told her to sit down and have some food. She obeyed and finished her food.
(a) Why was Manvi not feeling well?
(b) Name the components present in food. Out of these components, which are energy yielding ones?
(c) What values do you observe in Manvi?

List all the sources and importance of the following minerals in food.
(a) Calcium 
(b) Magnesium
(c) Potassium
(d) Zinc
(e) Iron

Check for the presence of starch, protein and fat in the given food items and complete the table given below:

Bhoojho fell off a tree and hurt his ankle. On examination, the doctor confirmed that the ankle was fractured. How was it detected?

Write the differences between bone and cartilage.

Briefly explain an exoskeleton. Also give examples.

Explain, how do we bend our elbow.

Why is It that we are able to move a few parts of our body easily in various directions and some only in one direction?

Draw a labelled diagram of pistil.

A and B are two types of plants. Plant A has green delicate and weak stem and its size is small. Plant B has branching of stem near the ground level and has bushy appearance. Name the plant A and B. Write one example of each.

Differentiate between creepers and climbers.

Sarita was interested in knowing more about plants and its parts. She started exploring and collecting plants. She wanted to preserve them, so that she can have a good collection of plants.
(a) Suggest the steps to help her in identifying plants.
(b) Is there any other method to identify plants Explain.
(c) What are the values shown by Sarita?

Observe figure and attempt the questions that follow it.

(a) Label the parts (i), (ii), (iii) and (iv) in the figure.
(b) What type of venation does the leaf has?
(c) What type of venation is seen in grass leaves? 

a) Collect different kinds of packaging materials. What was the purpose for which each one was used? Discuss in groups.
(b) Give an example in which packaging could have been reduced.
(c) Write a story on how packaging increases the amount of garbage

Do you think, it is better to use compost instead of chemical fertilisers? Why?

Paheli was writing a letter to her friend. She crumpled and threw the first draft of her letter on the floor as it had become untidy. Similarly, she crumpled and threw 6 more papers on the ground. In the end, she picked them up and put them in a polythene bag and threw it on the road outside her house.
Do you think, Paheli's action were responsible? What would you have done if you were in her place?

3R's are used as efficient means to reduce waste. What is meant by three R's in terms of waste disposal?

Waste of which material is more polluting, a polythene bag or paper? Give reasons.

It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it

Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.

Write any two properties of a magnet.

Where are poles of a bar magnet located?

A bar magnet has no markings to indicate its poles. How would you find out near which end is its North pole located?

Suppose you want to dry your school uniform quickly. Would spreading it near an anghiti or heater help? If yes, how?

Take out a cooled bottle of water from refrigerator and keep it on a table. After sometime you notice a puddle of water around it, why?

To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.

How are clouds formed?

When does drought occur?

Why does a lump of cotton wool shrink in water?

List five activities that are possible due to the presence of air

How do plants and animals help each other in the exchange of gases in the atmosphere?

Garima observed that when she left her tightly capped bottle full of water in the open sunlight, tiny bubbles were formed all around inside the bottle. Help Garima to know why it so happened?

Nitrogen in air is important for living organisms. Specify.

Explain why the bulb would not glow in the arrangement shown in the figure.

What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.

Would the bulb glow after completing the circuit shown in

if instead of safety pin, we use an eraser?

Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.

The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?

Rearrange the boxes given below to make a sentence that helps us to understand opaque objects.

In a completely dark room, if you hold up a mirror in front of you. Will you see a reflection of yourself in the mirror?

On a sunny day, does a bird or an aeroplane flying high in the sky cast its shadow on the ground? Under what circumstances, can we see their shadow on the ground?

Three identical towels of red, blue and green colour are hanging on a cloth line in the sun. What would be the colour of shadows of these towels?

State some of the properties of light.

Both Sarika and Mohan were asked to make salt solution. Sarika was given a teaspoonful of salt and half a glass of water whereas, Mohan was given twenty teaspoonful of salt and half a glass of water.
(a) How would they make salt solutions?
(b) Who would be able to prepare saturated solution?

Read the story titled 'Wise Farmer' and tick the correct option to complete the story.
A farmer was sad/happy to see his healthy wheat crops ready for harvest. He harvested the crops and left it under the sun/rain to dry the stalks. To separate the seeds from the bundles of the stalk, he handpicked/threshed them.
After gathering the seed grains, he wanted to separate the stones and husk from it. His wife winnowed/ threshed them to separate the husk and later sieved/ handpicked to remove stones from it. She ground the wheat grains and sieved/filtered the flour. The wise farmer and his wife got a good price for the flour. Can you tell why?

Rohit and Raman are best friends. They study in different class but in the same standard, Class VI. One day, they were playing in the school. They were throwing sand on each other. Suddenly Raman asked to Rohit if we mix salt in sand, then how will you separate the mixture of sand and salt?
Rohit was quite intelligent, his science teacher had completed the chapter separation of substances last week. So, he immediately explained the method of separation. Rohit told him that his teacher had shown this activity in the class and same method is applicable for the separation of mixture of sugar and sand.
Read the passage carefully and answer the following questions:
(a) How a mixture of sand and salt is separated?
(b) Name the method(s) which are applicable in the separation of this mixture.
(c) What values are shown by Rohit?

You are provided with a mixture of salt, sand, oil and water. Write the steps involved for the separation of salt, sand and oil from the mixture by giving an activity along with the diagram

A mixture of iron nails, salt, oil and water is provided to you. Give step wise method to separate each component from this mixture?

Differentiate between physical and chemical changes. Give two examples.

Give one example in each case.
(a) Change which occurs on heating but can be reversed.
(b) Change which occurs on heating but cannot be reversed.
(c) Change which occurs on cooling but can be reversed.
(d) Change which occurs on mixing two substances but can be reversed.
(e) Change which occurs on mixing two substances but cannot be reversed.

Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.

When a candle burns, both physical and chemical changes occur. Explain.

It was Paheli's birthday, her brother Simba was helping her to decorate the house for the birthday party and their parents were also busy making other arrangements. Following were the activities going on at Paheli's home:
(a) Simba blew balloons and put them on the wall.
(b) Some of the balloons got burst.
(c) Paheli cut colourful strips of paper and put them on the wall with the help of tape.
(d) She also made some flowers by origami (paper folding) to decorate the house.
(e) Her father made dough balls.
(f) Mother rolled the dough balls to make puries.
(g) Mother heated oil in a pan.
(h) Father fried the puries in hot oil.
Identify the activities at Paheli's home, as those that can be reversed and those, which cannot be reversed.

Give two examples each of modes of transport used on land, water and air.

Why can a pace or a footstep not be used as a standard unit of length?

Arrange the following lengths in their increasing magnitude.
1 metre, 1 centimetre, 1 kilometre, 1 millimetre

While measuring the length of a knitting needle, the reading of the scale at one end is 3 cm and at the other end is 33.1 cm. What is the length of the needle?

Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.

How are cactus adapted to survive in a desert?

which of the things in the following list are nonliving?
Plough, mushroom, sewing machine, radio, boat,water hyacinth, earthworm

Give an example of a non-living thing which shows any two characteristics of living things.

List the common characteristics of the living things.

Explain why speed is important for survival in the grasslands for animals that live there.

Bones are hard structures and cannot be bent. But we can still bend our elbow, knee, etc. How is this possible?

Earthworms are known as farmer's friends. Why?

The body of the fish is similar to the boat. Explain, how does fish move in water.

Can you imagine how does an earthworm fix parts of its body to the ground?

Given below is a list of different types of movements in animals:
Running, jumping, walking, slithering, crawling, flying, swimming, creeping.
Write the types of movements seen in each animal.

Draw (a) a leaf, (b) a tap root and (c) a flower

Can you find a plant in your house or in your neighbourhood, which has a long but a weak stem? Write its name. In which category would you classify it?

If a plant has leaves with reticulate venation, what kind of roots will it have?

Is it possible for you to find out whether a plant has tap roots or fibrous roots by looking at the impression of its leaf on a sheet of papers?

Name two flowers, each with joined and separated sepals.

To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?

You accidently dropped your favourite toy and broke it. This is a change you did not want. Can this change be reversed?

A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?

Can we reverse the following changes? If yes, suggest the name of the method.
(a) Water into water vapour
(b) Water vapour into water
(c) Ice into water
(d) Curd into milk

Tearing of paper is said to be a change that cannot be reversed. What about paper recycling?

Which among the following materials would you identify as soft materials and why?
Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice, pulses and fresh chapati.

Give the name of two objects each which can be made from the following materials.
(a) Glass
(b) Iron
(c) Gold
(d) Aluminium

Check whether the substance disappears in water or not

A solid is put in a bucket of water. It floats just below the surface of the water. What do you think is the density of the object in relation to the density of water?

Sugar, salt, mustard oil, sand, sawdust, honey, chalk powder, petals of flower, soil, copper sulphate crystals, glucose, wheat flour are some substances given to Paheli. She wants to know whether these substances are soluble in water or not. Help her in identifying soluble and insoluble substances in water.

From which parts of the plant cotton and jute are obtained?

Which part of these plants have fibres?
(a) Cotton
(b) Coconut
(c) Jute

In ancient times, stitching was not known. People used to simply drape the fabrics around different parts of their body. Even, today a number of unstitched fabrics are used by both men and women. Can you give four such examples of clothes?

Classify the plant fibres.

A cotton shirt, before it reaches you, completes a long journey. Elaborate this journey starting from cotton bolls.

Read the items of food listed below. Classify them into carbohydrate rich, protein rich and fat rich foods and fill them in the given table.
Moong dal, fish, mustard oil, sweet potato, milk, rice, egg, beans, butter, butter milk (chhachh), cottage cheese (paneer), peas, maize, white bread.

Name the following.
(a) The nutrients which mainly give energy to our body.
(b) The nutrients that are needed for the growth and maintenance of our body.
(c) A vitamin required for maintaining good eyesight.
(d) A mineral that is required for keeping our bones healthy.

(a) Are fats, proteins and starch present in all food items?
(b) Does a food item contain more than one nutrient?
(c) Is there any food item that does not contain any of the three nutrients?

(a) What are carbohydrates? Give an example.
(b) In which forms are carbohydrates found in our food?

Radha came back from school hungry and went to her mother in kitchen. Radha's mother was peeling vegetables. She noted that the peels were very thick and her mother then started washing vegetables. Radha asked her to stop washing the vegetables. Her mother was surprised and asked why? Radha told her all she knew about how nutrients are washed away if we peel and then wash them?
(a) If thick peels are removed from vegetables, what happens?
(b) Washing of vegetables after peeling is not a good practice. Can you tell why?
(c) What are those components that get washed away?
(d) Give two examples of vitamins and minerals containing food.
(e) Do you think Radha has any values? Name them.

Why do organisms need food? Write two reasons.

(i) Identify and write the names of plants that provide us with
(a) fruits 
(b) cereals/grains
(c) pulses
(d) vegetables
(e) oil or fat
(ii) Is oil/fat possible to derive from animal sources? If yes, give an example.

What are sprouted seeds? How are they eaten?

(a) On which process sprouting is based on?
(b) List benefits of sprouting.

Rajni went to Chennai to visit her friend. She noticed that the climate was very hot and the food available was so different than at home. Coconut is used extensively and rice is included in all meals. Her friend's mother explained these differences to Rajni.
(a) What changes were observed by Rajni in regard with food habits?
(b) Food habits of all places are different. What do you understand by food habits?
(c) List one dish commonly made in South India. Identify its ingredients, and separate plant and animal derived ingredients.
(d) Do you observe any values in Rajni? Name them.

Why do we need to separate different components of a mixture? Give two examples.

What is winnowing? Where is it used?

How will you separate husk or dirt particles from a given sample of pulses before cooking?

What is sieving? Where is it used?

Is it possible to separate sugar mixed with wheat flour? If yes, how will you do it?

Name five objects which can be made from wood.

Select those objects from the following which shine:
Glass bowl, plastic toy, steel spoon, cotton shirt

List all items known to you that float on water. Check and see if they will float on an oil or kerosene.

Give three common characteristics of materials.

Give five examples each of objects that float and sink in water.

Do you find that all living beings need the same kind of food?

Name five plants and their parts that we eat.

Why should we avoid wastage of food?

If you are given moong dal grains. How will you make the sprouts from them?

Why do organisms need food? Write two reasons.

Name the major nutrients in our food.

Name two foods each rich in
(a) fats 
(b) starch
(c) dietary fibre
(d) protein

Water does not provide nutrients, yet it is an important component of food. Explain

Name two sources of animal fats. From where are they derived?

Can you test and identify which of the following food items are fatty foods, i.e. food which is rich in fats? How will you test them?
Pulses, oil, wheat grains, butter, meat, rice, chapati, cucumber, pizza, poori and groundnuts.

Classify the following fibres as natural or synthetic:

Explain the process of making yarn from fibre.

We need clothes. Write some points to specify this statement.

What happens when the yarns are burnt? Do they shrink away from the flame or melt? What type of odour is given off?

Describe the main features of fabric which is made up of coconut fibre.

Find out where is the waste materials taken to and who does this work?

The waste materials produced after household work are stored at what place in our homes?

List some items of waste materials which cannot be used for vermicomposting.

What is paper mash?

Plastic bags are said to be harmful for stray animals. Why?

Name the sources of carbon dioxide in air.

A gas is given to the patients having breathing problems. Which gas is it?

State one biological importance of air dissolved in water.

Oxygen is released by plants. How?

Policemen use the masks for what reason?

Evaporation of water depends on temperature. How?

Is evaporation slow process or fast?

Give a biochemical reaction depicting the participation of water.

Water cycle is an important process associated with water. How will you define it

Human body also contains water. What is the percentage of water in human body?

Give the name of natural material that acts as a magnet.

Name the instrument utilised in finding the direction.

In which direction, a freely suspended magnet orients themselves?

Do the materials other than magnet also come to rest in the same direction in the statue of emperor's chariot?

State whether is it possible to isolate North and South pole of a magnet.

Mention the way through which an electric cell can produce electricity

A fused bulb does not glow. Why? 

Mention how many types of terminals of an electric cell are there.

Give name of portable electric lamp that works on cells?

What does the positive terminal of dry cell consist of?

Mention the name of an object which does not allow the light to pass through it.

Mention the name of an object which partially allows the light to pass through it.

If an object is of two different colours, then what will be the colour of shadow?

Mention the type of image is formed in pinhole camera.

As we know that moon appears to be bright at night. Does it mean that it is an luminous object?

Give the name of the motion possessed by the vehicles on a straight road.

State whether the hour hand of a wall clock is at rest or in motion.

Name the motion exhibited by a freely falling stone.

State how many kilometres are there in 1 metre.

Give the name of the device used to measure girth of a tree.

Give the names of any two animals which live in an aerial habitat. 

During respiration, gases are exchanged in our lungs. What are these gases?

Identify two plants which can be produced by stem cuttings.

Lions have very high agility. Why do they need this type of adaptation?

State an example of animals showing response to a stimuli.

Name the organs that are protected by the rib cage.

Name two animals which move without bones.

Comparing an earthworm and a snail, explain which of the two moves faster?

The hard and strong skull protects a delicate organ of our body. Name that organ

Can we bend our body at every part?

State the function of a leaf.

In some plants, roots do not have any main root but all the roots are similar. Give some examples of such fibrous roots.

All the leaves have petioles. Do you agree?

Leaves are modified to form a special structure to give support to the plant. Name that modification.

Differentiate between vein and midrib.

A change occurs during the growth of plants. What type of change it is?

Write the changes which cannot be reversed.

A piece of iron is heated till it becomes red hot. It then becomes soft and is beaten to a desired shape. What kind of changes are observed in this process; reversible or irreversible?

When a spring is pulled, its shape and size change. From this example, what do you understand?

How can you say that rusting of iron is an irreversible change?

Give one example of sieving used in everyday life.

Winnowing is based on which property?

Which method is used to separate the pieces of stones from grains?

Water is separated from rice and pulses after washing them. How?

Write one purpose of separating substance from a mixture.

Are the cotton and jute obtained from animals?

In which states of India cotton is grown?

Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However, the other did not shrink on burning. Can you help her to find out which of the two was a cotton fabric and which a silk fabric?

Out of cotton, nylon, flax and wool which is not a natural fibre?

Write the name of the season in which jute crop is cultivated.

Is there a situation called overnutrition?

Do people of all ages and different professional backgrounds need some type of diet?

Cellulose is also a carbohydrate, then why it is not digested in our body?

Proteins are called as building blocks of our body. Why?

Name the disease caused by the deficiency of vitamin-C.

Name two materials which do not conduct electricity.

Write two things which are made from glass.

Some materials are float on water. Name two materials as such.

Why a shopkeeper prefers to keep biscuits and sweets in a glass or plastic container?

Take a small cotton ball and place it in a tumbler/bowl filled with water. Observe it for at least 10 minutes. Will it float or sink in water and why?

While preparing idli, what major ingredients are used?

Flowers of which plants are used as vegetables?

Name anyone plant that grows in water and is eaten as a food.

Two set ups are prepared from pulses, one set up shows dry seeds while other is sprouted. Which seeds will have more nutritious value sprouted or normal seeds?

Does preparing different food items involve addition of same ingredients? Give an example.

Which of the following activities does not reflect responsible behaviour with regard to waste disposal?

Hospital waste is usually infectious. Select the best way to .dispose them.

The three Rs used in connection with reducing waste are

Some materials present in waste can rot. This rotting is carried out by

Leaves falling from trees should be disposed by

About one fifth of ordinary air is

Which of the following components of air is present in the largest amount in the atmosphere?

Wind does not help in the movement of which of the following?

Which of the following statements is incorrect?

CNG means:

Which of the following activities does not involve use of water?

Transpiration is a process in which plants

Which one is a process involving change of water into vapours in atmosphere?

Which of these is a result of condensation of water vapours?

Wells are fed by

A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron filings Clinging to the

Magnets have a shape of

A freely suspended magnet always points in the

 The South pole of earth's magnet is near the geographical ________________pole.

A shepherd named _______________ discovered the magnet.

Lead of a pencil is

Filament of a torch bulb is

Our body is

Rubber is a

In bulb,_______________ glows.

Which of the following is not always necessary to observe a shadow?

Which of the following is a transparent object?

 The objects which partially allow the light to pass through it are called 

Shadows are______________ from images.

__________________shadow is called penumbra.

The distance between Delhi and Mumbai is usually expressed in the unit of

Which of the following does not express a time interval?

Figure shows a measuring scale which is usually supplied with a geometry box. Which of the following distance cannot be measured with this scale by using it only once?

Paheli moves on a straight road from point A to point G. She takes 20 min to cover a certain distance AB and 30 min to cover the rest of distance BG. She then turns back and takes 30 min to cover the distance GB and 20 min to cover the rest of the distance to her starting point. She makes 5 rounds on the road of the same way. Paheli concludes that her motion is

A ball rolling on the ground represents

Choose the incorrect pair.

Boojho comes across an animal having a streamlined and slippery body. What is the habitat of the animal?

Which of the following is an incorrect statement about excretion?

Hibernation is an adaptation for

Which of the following constitute the biotic components of the environment?

Which of the following parts of our body help us in movement?
(i) Bones
(ii) Skin
(iii) Muscles
(iv) Organs
Choose the correct answer from the option below.

Skeleton of human body is made up of

Fixed joints are found in

Underwater divers wear fin-like flippers on their feet to

Which of the following organisms does not have both muscles and skeleton for movement?

The buds at the tip of the stem or its branches are called

The swollen part at the base of a flower from which the whorls of the flower radiate is called the

The male parts of the flower are called

Which part of the plant grows in the soil?

Which of the following is not a correct match?

Paheli bought some vegetables such as french beans, lady's finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

Which amongst the following methods would be most appropriate to separate grains from bundles of stalks?

While preparing chapatis, Paheli found that the flour to be used was mixed with wheat grains. Which out of the following is the most suitable method to separate the grains from the flour?

In an activity, a teacher dissolved a small amount of solid copper sulphate in a tumbler half-filled with water. Which method would you use to get back solid copper sulphate from the solution?

During summer, Boojho carries water in a transparent plastic bottle to his school. One day, he left his bottle in the school. The bottle still had some water left in it. The next day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to

Pick the change that can be reversed from the following.

Salt can be separated from its solution (salt dissolved in water) because

Rolling of chapati and baking of chapati are the changes that 

Which one of the steps while burning a candle is not reversible?

Which is a way to make a change happen?

Paheli wants to present her friend a gift made of plant fibre. Which out of the following will she select?

Which of the following materials did people use in ancient times for making clothes?
(i) Leaves of trees
(ii) Newspaper
(iii) Metal foils
(iv) Animal skins and furs

Which of the following is not a natural fibre?

Which set of substances is not used for making fibres?

The stem of jute plant is immersed in water to rot before separating fibres. The process is called ________ .

An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?

Which of the following materials is not lustrous?

Which pair of substances among the following would float in a tumbler half-filled with water?

Find the odd one out from the following.

Sand is a material which is _____________  in water.

Read the following statements about diseases.
(i) They are caused by germs.
(ii) They are caused due to lack of nutrients in our diet.
(iii) They can be passed one to another person through contact.
(iv) They can be prevented by taking a balanced diet.
Which pair of statements best describes a deficiency disease?

Roughage component in our food is made up of

Cyanocobalamin is vitamin

Skin, hair and nails are __________ .

Our body contains___________ of water.

We get eggs from

The part of a banana plant not used as food is

Carrot and radish food obtained from plants are examples of

The practice of bee-keeping is called _____________ .

The major sources of food are___________ and ___________ .

The distance between Delhi and Mumbai is usually expressed in the unit of

Which of the following does not express a time interval?

Paheli moves on a straight road from point A to point G. She takes 20 min to cover a certain distance AB and 30 min to cover the rest of distance BG. She then turns back and takes 30 min to cover the distance GB and 20 min to cover the rest of the distance to her starting point. She makes 5 rounds on the road of the same way. Paheli concludes that her motion is

Curved length can be measured by :

Find the odd one out:

Which of the following cannot be called a habitat?

Choose the incorrect pair.

The habitat of living organisms that live in water is called

Which of the following is an amphibian?

Submerged plants may have leaves that are :

The organ that protects the main nerve cord is

In cockroaches, the body parts helping in movement are 

How many muscles work together to move a bone?

Human skeleton comprises

Fishes swim by

The buds at the tip of the stem or its branches are called

The points on the stem from where leaves grow are called

Identify the creeper from the following:

Transpiration takes place through :

Androecium is which part of the flower?

Pick the change that can be reversed from the following.

Which of the following changes cannot be reversed?

An iron ring is heated. Which of the following statements about it is incorrect?

Salt can be separated from its solution (salt dissolved in water) because

Which one of the steps while burning a candle is not reversible?

Paheli bought some vegetables such as french beans, lady's finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them?

Which of the following mixtures would you be able to separate using the method of filtration?

In an activity, a teacher dissolved a small amount of solid copper sulphate in a tumbler half-filled with water. Which method would you use to get back solid copper sulphate from the solution?

Paheli asked for a glass of water from Boojho. He gave her a glass of ice cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho, how these droplets of water were formed? Which of the following should be Boojho's answer?

Most of the substances present around us are:

An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull?

Pick one material from the following which is completely soluble in water.

While doing an activity in class, the teacher asked Paheli to handover a translucent material. Which among the following materials will Paheli pick and give her teacher?

Select a transparent substance:

Copper metal is a

Paheli wants to present her friend a gift made of plant fibre. Which out of the following will she select?

Yarn is woven to get fabric using

Which of the following is not a natural fibre?

Which set of substances is not used for making fibres?

The correct sequence to get cloth is

Which one of the following food items does not provide dietary fibre?

Diseases occurring due to deficiency of one or other nutrients is called

Cyanocobalamin is vitamin

Body building foods that are necessary for growth and repair of the body are:

Which one of the following food item does not provide dietary fibre?

Honeybee makes honey from

From the given options, choose a food obtained from animals.

Carrot and radish food obtained from plants are examples of

Which of the following is a source of food?

Which of the following is not an ingredient of idli?

Which of the following activities does not involve use of water?

In which of the following cases, evaporation of water will be slowest?

Out of these which one is not a source of surface water?

Which of these is a result of condensation of water vapours?

Clouds are

North pole of a magnet can be identified by

Magnets have a shape of

Like poles of magnet always

The number of poles that a magnet has:

Strength of a bar magnet is minimum at   

Choose the incorrect statement.

In the circuit shown in figure, when the switch is moved to ON position.

Our body is

Open circuit is called

Rubber is a

Observe the picture given in the figure carefully.

A patch of light is obtained at B when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?

Paheli observed the shadow of a tree at 8:00 AM, 12:00 noon and 3:00 PM. Which of the following statements is closest to her observation about the shape and size of the shadow?

 Which one of the following is the natural source of light?

In lateral inversion:

Shadow of a red object will be:

The distance between Delhi and Mumbai is usually expressed in the unit of

A ball rolling on the ground represents

S.I. unit of length is

1 metre is equal to :

A means of transport along water routes is :