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Our Solar System

Total questions: 20

Worksheet time: 5hrs 0mins

Name
Class
Date
1.

Why is Earth unique compared to other planets? (Hint: What does Earth have that other planets don't?)

a)

liquid water

b)

an atmosphere

c)

solid ground

d)

living things

2.

What causes planets to orbit the sun and moons to orbit the planet?

a)

black holes

b)

gravitational force

c)

the asteroid belt

3.

The gases around the planet make up its ________.

a)

atmosphere

b)

water supply

c)

food source

4.

Asteroid or comet: Has a tail?

a)

asteroid

b)

comet

5.

Which planet in our solar system is the largest?

a)

Saturn

b)

Earth

c)

Jupiter

6.

Asteroid or comet: Can be very big and could hit Earth?

a)

asteroid

b)

comet

7.

Which planet in our solar system has liquid water to support life?

a)

Mars

b)

Neptune

c)

Earth

8.

Which planet in our solar system has the tallest volcano?

a)

Uranus

b)

Earth

c)

Mars

9.

The sun is the ________ that the planets orbit around.

a)

star

b)

planet

c)

galaxy

10.

The planets, moon, and sun are part of what system?

a)

universe system

b)

solar system

c)

galaxy system

11.

Which planet in our solar system has the most rings?

a)

Jupiter

b)

Saturn

c)

Neptune

12.

Which planet in our solar system is the smallest?

a)

Venus

b)

Mars

c)

Mercury

13.

Another name for a natural satellite is a _________.

a)

moon

b)

asteroid

c)

meteor

14.

Sometimes, a __________ is called a "shooting star".

a)

asteroid

b)

comet

c)

meteor

15.

What is between Mars and Jupiter?

a)

Earth

b)

the asteroid belt

c)

Olympus Mons

16.

A rocky object smaller than a planet is called a ________.

a)

mountain

b)

asteroid

c)

star

17.

A __________ is a large object that orbits a star.

a)

asteroid

b)

moon

c)

planet

18.

Which planet in the solar system is the hottest?

a)

Mercury

b)

Mars

c)

Venus

19.

Why does the moon shine in the sky?

4 lines
20.

Write the names of the planets in order (it is ok if you spell them wrong).

4 lines