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Java Games: Flashcards, matching, concentration, and word search. |
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Rocks, Minerals, and Fossils
Chapter 1, Unit C 3rd Grade Science
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| A | B |
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| mineral | solid natural object that has never been alive |
| rock | solid material made of one or more minerals |
| crust | Earth's solid outer layer |
| mantle | Earth's middle layer |
| core | Center of the Earth |
| igneous rock | Once melted rock that has cooled and hardened |
| sedimentary rock | rocks that settle in layers |
| metamorphic rock | rock changed by heat/pressure |
| rock cycle | process of changing rock types |
| fossil | marks/remains of once living things |
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