A clinical thermometer is not used to measure the temperature of air, why?

What is the use of kink in clinical thermometer?

Why do we jerk a clinical thermometer before we measure the body temperature?

What is the speed of electric current?

What is the S.I unit of electrical conductivity?

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

Name few insulators.

What is a battery?

State two examples of periodic changes.

Mention any two exothermic reactions.

What type of change is colouring of a paper?

Growing of nails is a periodic change. Why?

What type of energy changes is associated when ice melts?

What are the functions of cell wall in plant cell?

Which organelle uses energy from sunlight to make starch?

What are the main things in a nucleus?

What does cell membrane do?

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

What is classification?

Write two examples of Monera.

What is binomial nomenclature?

Write the binomial name of
a) Human being
b) Paddy

What is Tux Paint ?

What is the use of Text Tool ?

What is the use of Ranger?