| Term | Definition |
|---|
| Mineral | A solid object that is formed in nature and has never been alive |
| Rock | a solid material made up of one or more minerals |
| Crust | Earth's solid outer layer |
| Mantle | Earth's middle layer |
| Core | Center of the Earth |
| Igneous Rock | Rock that has once melted but has cooled and hardened |
| Sedimentary Rock | Materials that settle into layers and harden |
| Metamorphic rock | Rock that has been changed by heat and pressure |
| Rock Cycle | A process of changing rock types |
| Fossil | Marks or remains of a once-living thing |
| Examples of Igneous Rocks | Obsidian, Pumice, Snowflake Porphyry |
| Examples of Sedimentary Rocks | Limestone, Breccia, Red Sandstone |
| Example Metamorphic Rocks | Marble, Slate, Quartzite |
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