Give a reason, why the stars are visible only at night

5

(a)

Last week, Ramesh (a science teacher) was teaching about the planets to his students of class 5th• After giving a small lecture on planets, he started cross questioning with his students on the same topic. He found that almost, all the students answered all the questions. He asked following questions:
(i) Give the names of all the planets of solar system with respect to their distance from the Sun.
(ii) Name the planet on which the life is known to exist.
(iii) Mention the values shown by students of Ramesh here.

5

(a)

Figure shows comets without their tail. Show the tails of the comets at positions A, B, and C. In which position will the tail be longest?

5

(a)

Explain the difference between a natural and an artificial satellite. Enlist any three applications of artificial satellite.

5

(a)

Explain in brief about planets. How is a planet differ from a star?

5

(a)

A student of class VIII recognises Y group of stars which is visible during the summer season in the early part of the night. It resembles a bowl with a handle to the student.
(a) Mention the general name of group of star like Y.
(b) Write two names of Y.
(c) Give the name of the famous star which the student can locate from Y.

5

(a)

Look at figure carefully and answer the following questions:

(a) In which part of the sky would you see the full moon in the evening?
(b) In which part of the sky would you see the crescent moon in the evening?

5

(a)

Suppose the distance between the earth and sun becomes half of its present distance. What is likely to happen to life?

5

(a)

Across:
(i) Groups of stars
(iii) A use of artificial satellite

Down:
(ii) Constellation with seven stars looking like questions mark.
(iv) The other name of Milky way.

5

(a)

Write a short note about planets of the solar system.

5

(a)