Space Unit Study Guide

We live on the planet

• Earth

• Mars

Orbit means to

• Bop up and down

• Move around something

The sun is a

• Star

• Planet

All planets in the solar system orbit the sun

• True

• False

Our solar system is part of the

• Cosmic Galaxy

• Milky Way Galaxy

When the part of Earth that we live on is facing the sun, it is

• Day

• Night

What causes day and night?

• The sun and Earth’s rotation

• Comets

Why does the moon glow?

• It makes its own light

• It reflects light from the sun

Changes in how the moon looks at night are called

• Moon phases

• Solar energy

Gravity helped to create planets and moons.

• True

• False