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| This planet formed at the inner most location in the solar nebula where the temperature was cold enough for ices to form |
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| This is the only planet besides Earth that shows clear geologic evidence of liquid water flowing on the surface in the past. Today we see water ice at its poles and under the surface. |
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| This planet is covered in thick clouds and is a good example of what happens when you get a runaway greenhouse effect. |
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| Most of the craters on this planet have been wiped out by plate tectonics. |
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| This is the largest planet in the solar system. |
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| This planet has the most reflective set of ring particles. |
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| This planet contracted (shrunk) so quickly in the past that it produced fault lines called scarps (like wrinkles). |
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| This planet has a moon with a nitrogen rich atmosphere and lakes of liquid methane on the surface. |
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| This is the only planet to have water on its surface in all three stages (gas, liquid, solid) |
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| We think volcanoes are still active on this planet because there must be some source for the sulfuric acid we find in this planet's clouds. |
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| This planet is peculiar because its axis of rotation lies in the ecliptic (or orbital) plane, which gives it bizarre seasons. |
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| This planet is the Lord Farquaad of the Solar System. It is tiny, but it has the largest volcanoes and canyons in the solar system. |
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| This planet has a magnetic field, which is surprising because it is the smallest of all the planets and should have cooled and solidified long ago. |
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| This planet had a giant dark spot when visited by Voyager II in 1989, but in Hubble Space Telescope images it is clear that the dark spot is now gone. |
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| The color of these two planets is blue due to trace amounts of methane gas in their atmospheres. (mark both answers) |
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| Where in space would you look for a globular cluster? |
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| In the Milky Way halo, orbiting the galactic center in an elliptical orbit with a very large period |
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| Where would you look in our galaxy to find the oldest, metal-poor stars? |
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| in globular clusters in the galactic halo |
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| Hubble's observation that galaxies farther away from us are moving faster implies that |
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| the universe is expanding |
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| Where is the solar system located in our Galaxy? |
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| How do we know that galaxies farther away from us are moving faster than nearby galaxies? |
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| by measuring the redshift of galaxies |
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| Consider three widely separated galaxies in an expanding universe. Imagine that you are located in galaxy 1 and observe that both galaxies 2 and 3 are moving away from you. If you asked an observe in galaxy 3 to describe how galaxy 2 appears to move, what would he or she say? |
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| Galaxy 2 is moving away from me |
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| Big Bang model evidences? |
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| cosmic microwave background radiation, redshift of galaxies, abundance of hydrogen and helium in space |
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| Why are the spiral arms of spiral galaxies blue in color? |
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| Stars are forming in the spiral arms so there are many more high mass, hot, blue stars present |
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| Big Bang theory for the beginning of our Universe... |
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| an event that marks the beginning of the universe as a singularity of enormously high energy and temperature but no matter |
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