Solar System Review

What planet is the smallest in the solar system?

• Mercury

• Venus

• Earth

• Jupiter

Tags

NGSS.MS-ESS1-3

What is the only planet in our solar system that spins on its side?

• Jupiter

• Uranus

• Saturn

• Neptune

Pluto is not considered a planet anymore because it is so small and because it ______________.

• looks blue.

• has an irregular orbit.

• has a thin atmosphere.

• is so far from the sun.

Which statement correctly describes the size and age of the sun?

• The sun is 10 times the diameter of Earth and about 2.5 million years old

• The sun is 50 times the diameter of Earth and about 2.5 billion years old.

• The sun is 110 times the diameter of Earth and about 4.6 billion years old.

• The sun is 150 times the diameter of Earth and about 4.6 million years old.

Tags

NGSS.MS-ESS1-3

What does Earth’s protective atmosphere help to block out?

• Meteors and asteroids

• Enormous atmospheric storms

• Orbiting satellites

• Damaging rays from the sun

What phase of the moon is shown in the box in this picture?

• New Moon

• First Quarter

• Full Moon

• Last Quarter

Tags

NGSS.MS-ESS1-1

What causes seasons on Earth?

• The rotation of the moon around the Earth.

• The Earth's axial tilt as it revolves around the sun.

• The tilt of the Earth as it rotates each day.

Tags

NGSS.MS-ESS1-1

How long does it take Earth to make a full revolution around the sun?

• 28 and 1/2 days

• 24 hours

• 365 and 1/4 days

• 1 month

Tags

NGSS.MS-ESS1-1

What is this model of the solar system showing? Look at it closely!

• what early astronomers believed about our solar system

• the correct order of planets in our solar system

• the correct sizes of planets in our solar system

• what astronomers today believe about our solar system

Answer explanation

Astronomers used to think the Earth was the center of the solar system, but now we know it's the sun!

Tags

NGSS.MS-ESS1-1

Which picture best shows the size relationship between Earth and the moon?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-3