In thermometer when bulb comes in contact with hot object, liquid inside it ________.

(a)

expands

(b)

contracts

(c)

remains same

(d)

none of above

The body temperature of a healthy man is; ________.

(a)

0⁰C

(b)

37⁰C

(c)

98⁰C

(d)

100⁰C

In the circuit shown, which switches (L, M or N) must be closed to light up the bulb?

 

(a)

switch L only

(b)

switch M only

(c)

Switch M and N only

(d)

either switch L or switches M and N

In which of the following circuits are the bulb connected in series?

(a)

(b)

(c)

(d)

When a woolen yarn is knitted to get a sweater, the change can be classified as _______ .

(a)

physical change

(b)

chemical change

(c)

endothermic change

(d)

exothermic change

________is an example of a periodic change.

(a)

Earthquake

(b)

Formation of rainbow in sky

(c)

Occurrence of tides in seas

(d)

Showering of rain

Which part of the cell is called the brain of the cell?

(a)

Lysosome

(b)

Ribosome

(c)

Mitochondria

(d)

Nucleus

_______ helps in cell division

(a)

Endoplasmic reticulum

(b)

Golgi complex

(c)

Cnetrivole

(d)

Nucleus

The largest division of the living world is _______.

(a)

Order

(b)

Kingdom

(c)

Phylum

(d)

Family

In Tux Math, Space cadet option is used for ……

(a)

Simple addition

(b)

Division

(c)

Drawing

(d)

Multiplication

Temperature of Srinagar (J&K) is — 4⁰C and in Kodaikanal is 3⁰C which of them has greater temperature? What is the difference between the temperatures of these two places?

Jyothi was prepared to measure the temperature of hot water with a clinical thermometer. Is it right or wrong? Why?

What is the use of kink in clinical thermometer?

What is the S.I unit of electrical conductivity?

Name the device used to generate electricity.

Name some devices that run using heat effect of electric current.

What is a battery?

Cold milk is heated and it becomes hot. Which type of change it is?

What type of change is artificial ripening of fruit?

What type of change is colouring of a paper?

What are the main things in a nucleus?

What does cell membrane do?

Why lysosomes are known as scavengers of the cell?

Teacher said “A virus is not an organism” Do you agree with this statement or not? Explain Why?

What is classification?

Define – dichotomous key

What is binomial nomenclature?

What is Tux Paint ?

What is Tux Math?

What is the use of Ranger?

Swathi kept a laboratory thermometer in hot water for some time and took it out to read the temperature. Ramani said it was a wrong way of measuring temperature. Do you agree with Ramani? Explain your answer.

Differentiate parallel and serial circuits.

Define electrical conductivity.

How can a change occur in a substance?

Can you suggest a method to collect water from sea water?

Write correct sequence from cell to organism?

Explain the construction and working of an Telephone.

Explain the construction and working of a dry cell.