Solar System Test

Which is the only planet that supports life?

• Saturn

• Mars

• Earth

• Neptune

What planets make up the "inner planets" and are closest to the Sun?

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

What planets make up the "outer planets" and are further to the Sun?

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

What is the biggest planet in the solar system?

• Saturn
• Mercury
• Venus
• Jupiter

True or False? The Sun, Earth, eight other planets, their moons, and smaller objects make up the solar system.

• True
• False

True or False? The Sun is not a star.

• True

• False

What does the underlined word mean in the sentence below?

Because there's no atmosphere, the sky always appears black.

• layer of air or gas

• living things

• soil or craters

• volcano activity

What causes night and day on Earth?

• The rotation of the Earth.

• The moon moving around Earth.

• Earth orbiting the Sun.

• Wind moving across Earth.

Which planet is further from the Sun than Neptune?

• Saturn

• Uranus

• All planets are farther than Neptune.

• There are no planets further than Neptune.

The __________ has planets, moons, comets, and asteroids.

• solar system

• Earth

• rotation

• United States