Before you read

Facts about the Sun: Sun is the closest star to our Earth.

• True

• False

Facts about the Sun: Don’t look directly at the Sun, which can hurt your eyes. Scientists study the Sun through special filtered telescopes.

• True

• False

Choose the correct answer.

Solar energy is energy from _____.

• wind

• sunlight

• water

• the earth's core

Choose the correct answer.

Other _______________ travel in this solar system, such as moons, asteroids, and comets.

• outer

• inner

• bodies

• explore

Choose the correct answer.

Randy decided to _______________ things he was curious about.

• outer

• explore

• bodies

• inner

Choose the correct answer.

Iron and rock make up most of the four smaller _______________ planets of our solar system.

• outer

• explore

• bodies

• inner

Choose the correct answer.

Gas and rock make up most of the four larger_______________ planets.

• outer

• explore

• bodies

• inner

Choose the correct answer.

Which planet is Earth's sister?

• Venus

• Mercury

• Mars

• Jupiter

Choose the correct answer.

Which Planet is the largest?

• Earth

• Mars

• Jupiter

• Saturn

Choose the correct answer.

One similarity between asteroids, comets and meteoroids is that they all:

• are made of rock

• come from the Asteroid Belt

• come from the Oort Cloud

• orbit the sun