1.

Artificial satellites can be used for
I. communication.
II. oil and gas exploration.
III. meteorological studies.

2.

The brightest of all the planets is

3.

The grouping together of many stars is known as

4.

Which of the following planets are closer to the sun than the Earth?

5.

People who travel in space are called

6.

Which of the following planets are closer to the sun than the Earth?

7.

People who travel in space are called

8.

A lunar eclipse may occur when the

9.

Which of the following planets is at the center of the solar system?

10.

The sun and the planets form the

11.

The force which acts between planets and keeps them in their orbits is called

12.

Pluto is the darkest planet because it

13.

14.

Which of the following bodies is a satellite of the earth?

15.

Which of the following statements about the solar system is true? The

16.

On the moon, there are large holes called

17.

The sun is made up of burning

18.

In which units are the vast distances between stars in space measured?

19.

The planet earth is located in a galaxy known as

20.

Which of the following planets may be seen as a bright star in early mornings or evenings?

21.

Which of the following planets is nearest to the earth?

22.

How many times is the sun overhead at the equator within a year?

23.

A group of stars form

24.

A body which moves round the earth is called

25.

The smallest planet known in the solar system is

26.

The sun, the heavenly bodies and the planets form the

27.

A group of stars found in the universe is called

28.

The heavenly body that produces and emits its own light is

29.

Which of the following heavenly bodies is at the centre of the planetary system?

30.

The sun and the planets form the

31.

Seasonal changes are the result of the

32.

The fraction of the earth's surface that faces the sun at any particular time is

33.

The farther away a planet is from the sun, the

34.

How many days does the moon take to go round the earth.

35.

Which of the following heavenly bodies is a star?

36.

The planet in our solar system which has the largest orbit is

37.

How many days in a month does the moon appear?

38.

The earth moves completely round the sun once in every

39.

A smaller heavenly body, which orbits a bigger one could be described as a

40.

How long does it take the moon to move completely around the earth?

41.

The planet which is farthest away from the sun is

42.

How long does it take the moon to go completely round the earth?

43.

Day and night occur because the earth

44.

The fifth planet from the sun in the solar system is

45.

The solar system is made up of the

46.

Which of the following heavenly bodies is a star?

47.

The nearest planet to the sun in the solar system is