Planets and Planetoids

Which of the following is NOT true of all the inner planets?

• They are made of solid rock.

• They are called gas giants.

• They do not have rings.

• They are small in size

Which of the following planets experiences a runaway greenhouse effect because of the high levels of Carbon Dioxide in its atmosphere?

• Venus

• Mars

• Mercury

• Earth

Why does Mercury experience huge changes in temperature?

• Because it moves really close to the sun and then really far away

• Because it does not have an atmosphere to hold in heat

• Because it is made of gas and has a low density

Which of the following planets is similar to Uranus in terms of its size, mass, and atmosphere?

• Pluto

• Jupiter

• Neptune

• Saturn

The least dense planet in the solar system is

• Jupiter
• Saturn
• Neptune
• Earth

Which of the following separates the outer planets from the inner planets?

• Asteroid Belt

• Great Red Spot

• Kuiper Belt

• Oort Cloud

The majority of Jupiter's atmosphere is made up of

• nitrogen and oxygen.

• helium and oxygen.

• rock and water.

• hydrogen and helium.

The inner planets are:

• Mars, Jupiter, Saturn, Mercury

• Mercury, Venus, Earth, Mars

• Jupiter, Saturn, Uranus, Neptune

• Earth, Mars, Jupiter, Saturn

The outer planets are:

• Mercury, Venus, Earth, Mars

• Earth, Mars, Jupiter, Saturn

• Jupiter, Saturn, Uranus, Neptune

• Mars, Jupiter, Saturn, Uranus

Which terms describe the composition of the inner planets (PICK TWO)?

• rocky

• gaseous

• water

• solid