Unit Review: The Solar System

Which of the following planets has only two moons?

• Mars

• Venus

• Saturn

• Jupiter

Which of the following planets is a gas giant?

• Earth

• Mercury

• Mars

• Jupiter

Match the moon with the planet it orbits.

• Neptune

• Enceladus

• Saturn

• Oberon

• Uranus

• Triton

• Jupiter

• Callisto

• Mars

• Deimos

Which takes longer to form?

• rocky planets

• gas giants

Where is Ceres located?

• the Oort Cloud

• the Kuiper Belt

• the asteroid belt

Which of the following is NOT a Galilean moon?

• Titania

• Callisto

• Io

• Europa

Which of the following is a feature of rocky planets?

• They are far from the Sun.

• They have a lot of moons.

• They are mostly made of hydrogen and helium.

• They have a solid surface.

Which extremophile survives in high pressure environments?

• acidophiles

• psychrophiles

• thermophiles

• piezophiles

Which part of the comet is made by solar wind?

• ion tail

• dust tail

• coma

• nucleus

Which of the following is theoretical?

• the Kuiper Belt

• the Oort Cloud

• the asteroid belt

• Charon, Pluto's moon