(a)   is the coldest planet in the Solar System.

The Sun is the (a)   of the Solar System.

All the planets are rotating on their axes and at the same time revolving around the Sun on their own (a)   .

How many planets are there in the Solar System?

(a)  

Name the nearest planet to the Sun.

(a)  

Which planet has the longest orbit?

(a)  

Name the planet that takes 365 days to revolve around the Sun.

(a)  

A (a)   is small piece of meteoroid that burns as it enters the Earth's atmosphere.

A pulley is an example of a (a)   machine.

Name the machine shown.

(a)  

A fixed pulley consists of a (a)   , wheel, rope and axle.

Name the machine shown.

(a)  

State the use of pulleys in our daily life.

A pulley enables loads to be lifted easily with less (a)   .