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FINAL 2: Processes
8th Grade Earth Science FINAL 2
Question | Answer |
---|---|
What is the difference between weathering and erosion? | Weathering: The process of breaking down rocks and minerals. Erosion: The process of moving rocks & sediment by wind, water, ice, and gravity. |
What is the difference between mechanical & chemical weathering? | Mechanical: breaking down rocks and minerals into smaller pieces by physical force without changing composition. Chemical: breaking down rocks and minerals through chemical reactions. Results in rocks and minerals changing their chemical composition. |
What are the processes involved in the water cycle? | Precipitation - Evaporation - Transpiration - Condensation |
What affect does the melting of glaciers have on sea levels? | raises sea levels |
What are some examples of mechanical weathering? | Frost wedging, Salt crystal weathering, Changes in temperature/pressure, Biological factors, Abrasion |
What are some examples of chemical weathering? | Water, Acids, Carbon dioxide, Acid rain, Biochemical Weathering (Plants & lichens can release chemicals, like acid, to help them grow through rocks. ) |