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6th grade Earth and Space lesson 1
Question | Answer |
---|---|
breaks down or dissolves rock, weakening it or turning it into tiny fragments. No movement is involved in weathering. | Weathering |
involves a chemical change in at least some of the minerals within a rock. | Chemical weathering |
involves physically breaking rocks into fragments without changing the chemical make-up of the minerals within it. | Mechanical weathering |
As soon as a rock particle (loosened by one of the two weathering processes) moves | Erosion |
Another name for erosion | mass wasting |
Most erosion is performed | water, wind, or ice |
Bits of rocks and soil transported in flowing water is called | sediment. |
the action or process of depositing | Deposition |
the outline of a coast, especially with regard to its shape and appearance | Coastlines |
a mound or ridge of sand or other loose sediment formed by the wind, especially on the sea coast or in a deser | dunes |
a large natural stream of water flowing in a channel to the sea, a lake, or another such stream | Rivers |
a large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill. | Mountains |
a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles. | glaciers |