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Science Ch 5 BIS
Vocabulary words
| Term | Definition |
|---|---|
| mineral | natural, nonliving solid crystals that make up rocks |
| luster | the way the surface of a mineral reflects light |
| hardness | how easily the surface of a mineral can be scratched |
| streak | color of the powder that a mineral leaves when scratched across a special plate |
| cleavage | property of minerals to break along smooth, flat surfaces |
| igneous | rocks that form from molten rock |
| sedimentary | rocks that form when layers of sediments settle on top of one another and harden |
| metamorphic | rocks that have changed as a result of heat and pressure |
| landform | a natural land feature on Earth's surface |
| weathering | process of rocks in Earth's crust slowly being broken into smaller pieces |
| erosion | process of carrying away weathered bits of rock |
| deposition | the laying down of pieces of rock |
| fault | a break or crack in rocks where Earth's crust can move suddenly |
| volcano | a landform that forms an opening in Earth's crust where magma reaches the surfaces |
| drought | a period of weather that is much drier than usual |