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Earth Science
Chapter 2
Question | Answer |
---|---|
Which process forms igneous rock? | Melted rock cools and hardens (lava) |
Mineral | solid, nonliving material found in nature |
Metamorphic Rock | rock changed by heat and pressure |
How is streak tested? | rub to see the color of the powder it leaves |
What is measured by scratching a mineral? | hardness |
Cleavage | when rock breaks into flat sections |
Coal, sandstone, and granite | all are rocks |
Pieces of rock and other materials squeezed together in layers. | sedimentary rock |
Rocks with fossils are most likely... | sedimentary |
Fossils help determine the _____ of a rock. | age |
Rocks are mostly made of____ | minerals |
Tool that helps you examine the grains of a rock. | Hand lens/microscope |