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Continental Drift
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The theory that the continents sit on large crustal plates that have slowly moved over millions of years to the current positions of the continents today (Alfred Wegener).
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Plate Tectonics
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The theory that states that the Earth's Crust is made up of several plates of solid rock that slightly move as they float on the Mantle. Convection currents in the Mantle move the plates.
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Pangaea
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The name of the single huge landmass before the plates had separated by Plate Tectonics/ Continental Drift.
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Fossils
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Provide clues of how the continents on Earth were shaped in the past.
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Theory
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An idea about some aspect of the natural world that is weidely accepted as true and supported by many observations.
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How old is the Earth?
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Scientific evidence indicates that the Earth is very ancient, approximately 4.6 billion years old.
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Heat Energy
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A form of energy that is transferred by a difference in temperature.
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