1) What is the sun made of? a) liquid b) gas c) plasma d) lamps 2) Why isn't Pluto a plant any more? a) It isn't that much bigger than the objects in his orbit b) It has no moons around him c) Sceintists don't like him d) It's too far from the sun e) politics 3) What's stopping humanity from building a moon space base?  a) Luck of oxygen b) radiation c) transportation d) money 4) The closest stelar system to our own (the solar system) is... a) Mu Scorpii b) Alpha Centauri c) Mira d) Proxima Centauri 5) What is an astronomical unit? a) Study unit for matriculation b) The mass of the sun c) 1/4 light years d) The distance between the earth and the sun 6) The area around a star in which liquid water can exist: a) The goldilocks zone b) The terra field c) au*2*π d) The kepler belt

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