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Quiz: Test your Mars knowledge

Mars study guide

1. How much of Mars’ atmosphere is made up of carbon dioxide? 3 percent 50 percent 96.5 percent	2. How low can the temperature get during a cold day on Mars? 35° Fahrenheit -30° Fahrenheit -225° Fahrenheit
3. How big is Mars? About half the size of Earth About a quarter of the size of Earth About twice as big as Earth	4. Does Mars have seasons? Yes No
5. In 1938, Orson Welles broadcast a radio play about a Martian invasion of New Jersey that many listeners thought was real. What novel was the play based on? "Fahrenheit 451" by Ray Bradbury "The War of the Worlds" by H. G. Wells "Brave New Word" by Aldous Huxley	6. What was the name of the first spacecraft to orbit Mars? Odyssey 1 Mariner 9 Viking Lander I
7. How long is each Martian year? 687 Earth days 365 Earth days 501 Earth days	8. What form of life do scientists speculate might live on the planet? Little green men Cockroaches Microbes

Source: NASA, CNN

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