Planets of the Solar System Quiz

How many planets orbit around the sun?

• Ten

• Nine

• Eight

• Seven

Which planet is known for having a very thin atmosphere and long days?

• Mars

• Mercury

• Earth

• Venus

Which planet has an atmosphere that is extremely hot and spins backwards?

• Mercury

• Venus

• Mars

• Earth

Which planet is covered in water and has an atmosphere that protects it from meteoroids?

• Venus

• Earth

• Mercury

• Mars

Which planet has a third of Earth's gravity and is a potential destination for human visits?

• Mercury

• Venus

• Mars

• Earth

Which planet has 79 moons, including IO and S/2003 J2?

• Saturn

• Jupiter

• Neptune

• Uranus

Which planet is known for its beautiful rings and is made of hydrogen and helium?

• Jupiter

• Neptune

• Saturn

• Uranus

Which planet rotates on its side and smells like rotten eggs due to hydrogen sulfide?

• Jupiter

• Saturn

• Uranus

• Neptune

Which planet is the windiest and has a dark vortex that may disappear soon?

• Uranus

• Saturn

• Jupiter

• Neptune

What is Pluto currently classified as?

• A dwarf planet

• A star

• An asteroid

• A planet