Name any two celestial objects which we can see easily in the right sky.

After how many days, the moon achieves its full moon phase?

Name two objects other than planets which are members of the solar system.

Mention the relation between the size of moon and the size of the Earth in terms of their diameters.

Can we hear any sound on the moon?

Mention the name of the star which remains fixed at the same place in the sky in the north.

Explain the statement, ‘a star is 8 light years away from the Earth’.

Name the star (after the Sun) which is closest to the Earth.

Do all the stars in the sky move? Explain.

Give two other names of Ursa Major constellation.

In which season of the year is the constellation Orion visible in the sky?

From which constellation, you can locate Pole star?

Name two prominent constellations in the northern sky.

Name two planets which can be seen as morning star.

Give the name of the planet which is known as red planet.

Which characteristic of the planet Saturn makes it unique in the solar system?

Name two planets which show phases like the moon.

Name two planets having asteroids between them.

Explain the meaning of asteroid belt.

Name the celestial body which can be seen as a right streak of light coming down in the night sky.

Name the agency responsible for development of space science programmes in India.

The distance between stars and planets expressed in light year. Explain why?

Explain why the number of meteors striking the moon’s surface is quite large whereas very few reach the Earth’s surface.

What is the name of that planet which has 28 moons?

Name the constellation which appears to have the shape of (a) distorted M (b) a hunter.

Which is the largest planet?

Moon has no atmosphere. Why?

1.

The Ursa Major consists of how many stars?

What is the mass of the earth?

In which direction do stars appear to move in the sky? Why do they appear to move in this direction?

Stars appear as point while planets appear as discs. Explain why.

Explain the factors which differentiate the pole star from other stars.

Distinguish between a meteor and a meteorite.

Sun is a star. Comment.

What do you mean by light year?

Write the difference between star and planet.

Explain in brief about the celestial objects. Also, mention the name of any two celestial objects.

Write in brief about the phases of the moon. What are the causes of phases of the moon?

State the difference between full moon and a new moon. After how many days a full moon changes into new moon?

Write a short note on the unit in which astronomical distances are measured.

Write the names of members of solar system with their distances from the sun.