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Did you even wonder why some rocks are round and smooth while others are broken up into small pieces? Maybe you've even discovered a rock in your backyard that's made up of several layers. If so, you've just seen the three types of rocks that make up the rock cycle. The best way to understand how the rock cycle works is to re-create it using a box of ordinary crayons. Ask your mom, dad or other adult to act as your scientific assistant: This crayon rock cycle experiment will require their supervision and help.How does a rock change from an igneous rock, sedimentary rock, metamorphic rock, and then back into an igneous rock?
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Fecha publicaci?n: 12.5.2016
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