Solar System

The word ________ is used to describe something that is related to the sun.

• Hydro

• Solar

• Wind

Planets and other celestial bodies that orbit the sun make up what is known as the __________ __________.

• solar system

• aurora borealis

How many planets are in our solar system?

• 4

• 8

• 12

Mercury, Venus, Earth, and Mars are the _______ planets.

• inner

• outer

___________ is the closest planet to the sun and the smallest of the eight major planets in the solar system.

• Mars

• Jupiter

• Mercury

__________ is the brightest celestial object that you can see from Earth.

• Earth

• Saturn

• Venus

Venus is sometimes referred to as the ________ star.

• morning

• afternoon

• summer

Which planet is our sister planet?

• Uranus

• Venus

• Moon

Which planet is known as the red planet?

• Mercury

• Mars

• Jupiter

Jupiter, Saturn, Uranus, and Neptune are the _______ planets.

• outer

• inner