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Science rocks
Question | Answer |
---|---|
What is a rock? | A mixture of one or more minerals |
what is lava? | magma that reaches the earths crust. |
What is magma? | molten rock under earths crust. |
What is molten? | Very hot liquid material |
What are sediment(s)? | Pieces of shell, rock, and/or parts of plants and animals. |
What is Igneous rock? | A Type of rock formed from the cooling of melted rock material (magma or lava) |
What is sedimentary rock? | A type of rock formed from sediments hardening into layers. |
What is Metamorphic rock? | A type of rock formed when heat and pressure change other rocks. |
What is color? | What hue the mineral appears to be in light. |
what is a streak? | The color of the mineral in powdered form. |
Hardness? | how easily a mineral can be scratched; measured on Moh's scale hardness. |
Cleavage and Fracture? | How a mineral breaks when hit sharply. |
Luster? | How light reflects off a minera's surface. |