Which of the following is not a member of the solar system?

1

(a)

An asteroid

(b)

A satellite

(c)

A constellation

(d)

A comet

The change in seasons on the earth occurs because

1

(a)

the distance between the earth and the sun is not constant

(b)

the axis of rotation of the earth is parellel to the plane of its orbit

(c)

the axis of rotation of the Earth is perpendicular to the plane of its orbit

(d)

the axis of rotation of the Earth is tilted with respect to the plane of its orbit

Which star is nearest to the Earth?

1

(a)

Pole star

(b)

Cassiopeia

(c)

Orion

(d)

Sun

Morning star is the name given to

1

(a)

Pole Star

(b)

star Sirius

(c)

planet Jupiter

(d)

planet Venus

What term is used for celestial bodies that revolve around the sun in highly elliptical orbit?

1

(a)

Comet

(b)

Meteors

(c)

Asteroids

(d)

Planets

_______ are celestial bodies of the universe and continuously emit heat and light

1

(a)

Stars

________ is the distance travelled by light in one year and is equal to 9.46\(\times\) 10¹² km.

1

(a)

One light year

________ is the star which appears to be stationary near the northern horizon.

1

(a)

Pole Star

________ are bright objects that revolve around the Sun.

1

(a)

Planets

___________ constitutes the Sun, eight planets with their moons and all others objects that are bound to the sun due to gravity, e.g. asteroids, comets and meteors.

1

(a)

Solar system

Mercury is the smallest planet of the solar system.

1

(a) True

(b) False

Uranus is the farthest planet in the solar system.

1

(a) True

(b) False

INSAT is an artificial satellite.

1

(a) True

(b) False

There are nine planets in the solar system.

1

(a) True

(b) False

Constellation Orion can be seen only with a telescope.

1

(a) True

(b) False

Can we hear the sound on the moon?

2

(a)

Are the stars have the same colour?

2

(a)

State, which planet of the solar system is largest and smallest in size.

2

(a)

Can we read the distance of nearest star from the Earth conveniently?

2

(a)

Give the name of the periodic comet. Why is it called so?

2

(a)

The moment, the meteors enter the atmosphere of Earth, then what exactly happens? Explain in brief.

3

(a)

Mention about the shifting of the Sun towards the south and towards the north

3

(a)

Boojho wants to know, why the moon changes its shape.

3

(a)

I want to know why we do not see the stars during the day. Why are they visible only at night?

3

(a)

I wonder whether Pluto is still a part of our solar system?

3

(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)

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

5

(a)