Planets Benchmark Review

Where do Jovian planets form relative to the sun?

• close to the sun where temperatures are cooler

• close to the sun where temperatures are warmer

• further away from the sun where temperatures are cooler

• further away from the sun where temperatures are hotter

Which planets have surfaces covered by craters?

• Only Earth and Mercury

• Earth and Mars

• Only Mercury

• All terrestrial planets have craters on their surfaces.

Earth's atmosphere is mostly _______, while the gas giants have atmospheres that are mostly ___________.

• hydrogen and helium; oxygen and nitrogen

• nitrogen and oxygen; hydrogen and helium

• hydrogen and oxygen; nitrogen and methane

• methane and oxygen; helium and sodium

What type of planets are relatively small, have high densities, are solid, with metallic cores?

• terrestrial planets

• jovian planets

What type of planets are large, low density planets mostly made of hydrogen and helium gases?

• terrestrial planets

• Jovian planets

Which planet has the most extreme temperature ranges from day to night?

• Mercury

• Venus

• Earth

• Mars

This planet has an extremely thick atmosphere of CO₂, causing a runaway greenhouse effect on its surface.

• Mercury

• Venus

• Earth

• Mars

This is the only planet in our solar system where water can exist in all three phases.

• Mercury

• Venus

• Earth

• Mars

Evidence suggest this planet used to have liquid water on its surface.

• Mercury

• Venus

• Earth

• Mars

This is the largest planet in our solar system, and a large storm called the Great Red Spot has been observed on its surface for centuries.

• Jupiter

• Saturn

• Uranus

• Neptune