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| naturally occurring pure substances with specific properties |
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| hot, melted rock pouring out of a volcano |
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| melted or liquefied rock inside the earth |
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| a rock which is formed when magma/ lava cools and hardens into rock |
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| particles that settle to the bottom. |
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| rock which is formed from many layers of sediment including mud, silt or sand squeezed together |
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| the forces created by weight and movement of the earth’s layers. |
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| an igneous or sedimentary rock that has been changed by pressure and heat beneath the earth’s surface. |
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| The recycling of rocks, from one type to another. This takes MANY years! |
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