A .................. is a pattern of stars in the sky.

The study of the sun, stars and the planets .................... .

When we see more than half of the Moon, it is called ................... Moon.

We are able to see the Moon because it .................... .

The Earth rotates from .................... .

Which three planets are in correct order ?

Sun is a .................... .

The Earth completes one revolution in ................. .

How many planets are in our Solar system ?

Earth completes one rotation in .................... hours.

What is the surface temperature of Sun ?

.................... is the natural satellite of the Earth.

Which one of the following is NOT a constellation ?

A ................ is a heavenly body that has light and heat of its own.

What is Sun mainly made up from ?

Earth is surrounded by a layer of ...................... .

.............................. was the first astronomer to inform the world that the Earth is round .

What fraction on the Earth's surface is covered with water ?

The Earth revolves around the Sun in a fixed path called the ....................... .