Unit 7: Mid Unit Review

Which of the following planets has the greatest gravitational force?

• Saturn
• Mars
• Venus
• Jupiter

Which set of planets is characterized with rocky, solid surfaces?

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

Which of the following is a true statement about the inner planets?

• They are “terrestrial planets.”

• They are generally larger in size than the outer planets.

• They are known to have rings around them

• They are “gas giants.”

Which of the following forces keep the planets in orbit around the Sun?

• Gravity
• Friction
• Magnetism
• Wind

This planet is often referred to as "Earth's Twin" or "Earth's Sister." It is the second planet from the Sun.

• Venus
• Saturn
• Mercury
• Mars

This planet is surrounded by large rings

• Saturn
• Mars
• Jupiter
• Neptune

This planet is the smallest of all the planets and is about the size of Earth's moon.

• Venus
• Mars
• Jupiter
• Mercury

This planet is approximately 70% covered by water and also has an atmosphere that contains water.

• Earth
• Mercury
• Venus
• Mars

This planet is very commonly referred to as the "Red Planet."

• Mars
• Jupiter
• Venus
• Earth

This planet is the most massive and has the most gravitational force.

• Jupiter
• Neptune
• Saturn
• Mars