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Changes in the Earth
3rd grade
Vocabulary Word | Definition |
---|---|
Weathering | processes that crumbles, cracks and breaks down rocks |
Earthquake | a sudden movement of rocks that make up of Earth's crust, can cause landslides, begins far below the surface of the Earth |
Flood | a huge flow of water over land that is usually dry |
Hurricane | a violent storm with strong winds and heavy rains; happens along coastlines |
Erosion | this occurs when weathered materials are carried away, this usually occurs slowly |
Glacier | huge heap of moving ice |
Landform | a feature of the Earth's surface |
Plain | a wide, flat land; The Great Plains are in the midwest |
Mountain | the highest landform, occurs when rocks buried deep below the Earth's slowly rise to the surface |
Sand dune | a mound of sand |
Plateau | flat land with steep sides, it is higher than the land around it |