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a scientist who studies the geospheres of planets in our solar system
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a claim supported by evidence
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an event or series of events that causes changes in the geosphere, such as flowing water or lava
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any planet with a solid surface such as Earth or Mars
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all of the liquid water and solid water (ice) on a planet
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the mixture of gases surrounding a planet
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having the conditions necessary to support life
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the solid part of a rocky planet
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the process of making clear how your evidence supports your claim
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all of the living things on a planet
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information about the natural world that is used to support or go against (refute) a claim
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a feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
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a long, narrow groove that forms where water, lava or other liquid flows
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to notice how two or more things are alike or different
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a set of interacting parts forming a complex whole
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an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
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a proposed answer to a question about the natural world
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