What type of object is Pluto now classed as? Choices: A planet, A dwarf planet, An asteroid, A comet
Who discovered Pluto in 1930? Choices: Clyde Tombaugh, Percival Lowell, Edwin Hubble, William Herschel
What is the name of Pluto's largest moon? Choices: Nix, Hydra, Styx, Charon
How many known moons does Pluto have? Choices: Three, Five, Seven, One
About how long is a year on Pluto? Choices: About 248 Earth years, About 165 Earth years, About 300 Earth years, About 84 Earth years
In which year was Pluto reclassified as a dwarf planet? Choices: 1996, 2001, 2015, 2006
About how long is one day on Pluto? Choices: About 10 hours, About 6 Earth days, About 24 hours, About 20 Earth days
What is the name of the large heart-shaped area on Pluto's surface? Choices: Cthulhu Macula, Tartarus Dorsa, Sputnik Planitia, Hillary Montes
What is Pluto mostly made of? Choices: Rock and ice, Liquid metal, Gas and dust, Solid iron
Where was Pluto's discoverer working when he found it? Choices: Mount Wilson Observatory, Lowell Observatory, Kitt Peak Observatory, Greenwich Observatory
What is unusual about Pluto's orbit compared with the eight planets? Choices: It is a perfect circle, It does not move at all, It goes around the Sun twice as fast, It is tilted and more oval shaped
Does Pluto's orbit ever cross inside Neptune's orbit? Choices: No, it always stays farther out, Yes, it stays inside permanently, Yes, for about 20 years each orbit, No, it crosses inside Uranus's orbit instead
Which organization reclassified Pluto in 2006? Choices: NASA, The International Astronomical Union, The European Space Agency, The Royal Astronomical Society
About how many times smaller than Earth's Moon is Pluto? Choices: About 1.5 times smaller, About the same size, About 3 times smaller, About 10 times smaller
Who suggested the name Pluto, and won a small prize for it? Choices: Clyde Tombaugh, Percival Lowell, Venetia Burney, Caroline Herschel