The Solar System

How many planets are there in our Solar System?

• 3

• 7

• 8

• infinite

Have scientists found proof of life on other planets?

• Yes

• No

True or False:

A solar system is a system of planets that move around a sun or star.

• True

• False

True or False:

The Milky Way Galaxy is part of our solar system.

• True

• False

What does not orbit the Sun?

• planets

• space junk

• asteroids

• stars

True or False:

The Sun is our closest star.

• True

• False

What is the Sun?

(Choose what is not true)

• The Sun is our closest star.

• The Sun is a huge fireball.

• The Sun is a planet full of burning gas.

• The Sun is a big ball of burning gas.

How long does it take for light from the Sun to reach Earth?

• 1 second

• 8 seconds

• 1 minute

• 8 minutes

What is the surface temperature of the Sun?

• 5500 degrees Celcius.

• 550 degrees Celcius.

• 55 degrees Celcius.

• 5,5 degrees Celcius.

True or False:

The Sun is smaller than the Earth

• True

• False