Exploring the Components of Our Solar System

Which of the following is NOT a terrestrial planet?

• Mercury

• Earth

• Venus

• Jupiter

What is the primary composition of the objects in the Kuiper belt?

• Carbonaceous chondrites

• Metallic hydrogen

• Ices and volatile elements

• Rocky materials

Which planet has an axial tilt of about 23.5 degrees?

• Venus

• Earth

• Mars

• Jupiter

Tags

NGSS.MS-ESS1-3

What is the reason for the lack of seasonal variations on Mercury and Jupiter?

• They have no axial tilt

• They have retrograde rotation

• They have no atmospheres

• They are too far from the Sun

Tags

NGSS.MS-ESS1-1

Which planet is known for its retrograde rotation?

• Saturn

• Venus

• Neptune

• Mars

What is the primary composition of gas giants?

• Carbonaceous chondrites

• Molecular hydrogen and metallic hydrogen

• Water and ammonia ices

• Rocky silicates

Which planet has a density low enough to float in water?

• Jupiter

• Saturn

• Uranus

• Neptune

Which terrestrial planet is closest in mass to Earth?

• Mars

• The Moon

• Venus

• Mercury

What is a defining characteristic of dwarf planets?

• They have cleared their orbits

• They orbit the Sun and have not cleared their orbits

• They are composed mostly of gas

• They are not round in shape

What are comets primarily composed of?

• Dirty chunks of volatiles

• Metallic hydrogen

• Rocky silicates

• Carbonaceous chondrites