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Grade 5 C-1 Sci. Def
Chapter 1 Changes to Earth’s Surface
Term | Definition |
---|---|
landform | A physical feature on Earth's surface |
weathering | The process of breaking rock into soil, sand, and other tiny pieces |
erosion | The process of moving sediment from one place to another |
deposition | The process of dropping, or depositing, sediment in a new location |
mass movement | The downhill movement of rock and soil because of gravity |
crust | The thin, outer layer of Earth |
mantle | The layer of rock beneath Earth's crust |
core | The transfer of heat as a result of the mixing of a liquid or a gas |
plate | The rigid blocks of crust and upper mantle rock |
magma | A hot, soft rock from Earth's lower mantle |
volcano | A mountain formed by lava and ash |
earthquake | A shaking of the ground caused by the sudden release of energy in Earth's crust |
fault | A break or place where pieces of Earth's crust move |
continental drift | A theory of how Earth's continents move over its surface |
Pangea | A super continent containing all of Earth's land that existed about 225 million years ago |
fossil | The remains or traces of past life found in sedimentary rock |