Solar System

How long does Earth's orbit around the sun take?

• 365 and 1/4 days

• 360 days

• 24 hours

• 2 years

What causes day and night here on our Earth?

• The different moon phases

• Asteroids

• The rotation of Earth

• Stars

This is the first planet from the Sun; it is very hot in the day and very cold in the night.

• Mercury

• Neptune

• Earth

• Jupiter

What are large chunks of rocks and metal in space?

• Earth

• comet

• asteroids

• gibbous

The fourth planet from the Sun; also known as the "red planet."

• Neptune

• Mercury

• Earth

• Mars

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto

Which planet is closest to the sun?

• Uranus
• Mercury
• Neptune
• Earth

Which planet is third from the sun?

• Mars
• Pluto
• Venus
• Earth

What is the difference between the inner planets and the outer planets?

• The outer planets are smaller than the inner planets 
• The inner planets are smaller than the outer planets
• The outer planets have more rocks than the inner planets
• the inner planets are heavier than  the outer planets

This is the phase of the moon when the moon looks like a thin sliver (less than half of the moon's nearside is sunlit).

• crescent

• gibbous

• full

• new