Quiz on Pluto: The Dwarf Planet

What was Pluto originally classified as after its discovery in 1930?

• An asteroid

• A planet

• A dwarf planet

• A comet

In what year was Pluto reclassified as a dwarf planet?

• 2006

• 1999

• 1930

• 2005

What is the largest moon of Pluto called?

• Eris

• Charon

• Hydra

• Nix

How long does it take for Pluto to complete one orbit around the Sun?

• 75 years

• 365 days

• 248 years

• 100 years

What is the main component of Pluto's atmosphere?

• Helium

• Oxygen

• Hydrogen

• Nitrogen

Which planet was Pluto closer to the Sun than, between 1979 and 1999?

• Uranus

• Neptune

• Mars

• Jupiter

What is the approximate temperature on Pluto?

• -390 F

• 32 F

• 100 F

• -100 F

Who discovered Pluto?

• Galileo Galilei

• Isaac Newton

• Clyde Tombaugh

• Percival Lowell

What is the Kuiper Belt mainly composed of?

• Gases

• Rocky material

• Metallic objects

• Icy material

What significant feature does Pluto and its moon Charon share?

• They are both gas giants

• They have rings

• They orbit a point between each other

• They are in the asteroid belt