Solar System Review

Why is Pluto no longer considered a planet?

• It is too big.
• It is too small.
• It is a moon, not a planet.
• It does not revolve around the sun

What planets are known as terrestrial planets?

• Mars, Earth, Jupiter, Uranus
• Earth, Jupiter, Saturn, Venus
• Jupiter, Saturn, Uranus, Neptune
• Mercury, Mars, Venus, Earth

How many planets are in the solar system?

• 8
• 7
• 9
• 10

What is the largest planet in the solar system?

• Earth
• Jupiter
• Saturn
• Neptune

What is at the center of the solar system?

• Earth
• Pluto
• Sun
• Moon

What scientists believed in a geocentric model (the earth is in the center of the solar system)?

• Aristotle, Galileo
• Galileo, Copernicus
• Copernicus, Ptolemy
• Aristotle, Ptolemy

What does revolve mean?

• to go around
• to turn or spin
• to not move

How long does it take the Earth to revolve around the Sun?

• 28 days
• 24 hours
• 365 1/4 days
• 364 1/4 days

Which is an example of rotation?

• The moon rotates around the Earth
• The Earth rotates every 24 hours
• The Earth goes around the sun.

How long does it take the moon to go through all its phases?

• about a year
• about a month
• about a week
• about a day