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Earth/ Moon Mercury Venus Mars Jupiter $200 AA $200 $200 $200 $200 $200 $400 $400 $400 $400 $400 $400 $600 $600 $600 $600 $600 $600 $800 $800 $800 $800 $800 $800 $1000 $1000 $1000 $1000 $1000 $1000 Saturn $200 Oxygen What gas is mostly found due to life processes? $400 It has slowed down gradually (.0015 sec per 100 years) What has happened to Earth’s rotation over time? $600 By trapping outgoing radiation from Earth The greenhouse effect works by trapping.. $800 auroras What do we get when we displace solar winds towards the poles of a planet? $1000 Small meteorites breaking up the regolith What is the major erosion force on the moon? $200 It is so close to the sun. Why can’t we view Mercury from Earth? $400 Because of the view from Earth, they pass in front of and behind the sun. Why do the Moon and Mercury both have phases? $600 It has no atmosphere to moderate temperatures Why is Mercury hot during its day and so cold during its night? $800 They don’t have permanent atmospheres How do the atmospheres of the moon and Mercury compare? $1000 It spins so slowly Besides its atmosphere why is Mercury’s temperature so extreme? $200 243 days How long does Venus take to orbit on its axis (rotational period) $400 Raised the temperature by hundreds of degrees celsius What has the greenhouse effect done on Venus? $600 Carbon dioxide What is the main ingredient in the atmosphere of Venus? $800 Sulfuric Acid What is the composition of the clouds of Venus? $1000 It’s Slow Rotation Why does Venus not have a magnetic field? $200 It is farther away, less reflective Why does Mars appear fainter in the night sky than Venus? $400 24 hours, 39 minutes How long is a day on Mars? $600 It has a much more elliptical orbit than Earth Why are the seasons on Mars effected by its distance from the sun? $800 Valles Marineris and Olympus Mons What is the Solar Systems greatest Canyon and greatest volcano? $1000 It is frozen in the polar ice caps and perma frost What might have happened to the water vapor on Mars? $200 It is the fastest in the solar system What is interesting about Jupiter’s rotation? $400 Zonal flow and differential rotation Why are there variations in Jupiter’s zones and belts? $600 More mass What would Jupiter need to become a star? $800 It stretches beyond Saturn’s orbit How large is Jupiter’s magnetosphere? $1000 IO, Callisto and Gannymeade Which of the Galilean moons is geologically active? Which is the oldest? Which is the largest? $200 Because of its density, Saturn is the only planet that could $400 Hydrogen and helium The atmosphere of Saturn is composed of $600 nitrogen The atmosphere of titan is composed mostly of $800 Small icy particles orbiting Saturn What are Saturn’s rings? $1000 They fall within the Roche limit The reason the rings exist is