1) What impact does weathering have on soil formation? a) Chemical weathering adds helpful chemicals to the soil b) Rocks are broken into smaller pieces and eventually into sediment c) Mechanical weathering adds ice to the soil, which turns into water d) volcanic eruptions contribute metamorphic rocks to the soil 2) How long does the weathering process take? a) a few days b) no more than a month c) exactly one year d) years and years 3) What is weathering? a) a process that breaks down rocks into smaller pieces b) a shift in weather patterns c) a process in which mountains are made d) a process by which seasons change 4) How might a weathered mountain appear different from an unweathered mountain? a) it would be taller b) it would be more rounded c) it would be more jagged d) it would have fewer trees 5) What can you infer about ice from the information presented in the movie? a) it expands as it freezes b) it causes chemical weathering c) it barely causes weathering d) it does not exert pressure on rocks at all 6) What type of changes does erosion cause? a) Physical change b) Chemical change c) Electrical d) Magnetic 7) How do sandy beaches form? a) Waves pounding pebbles into smaller and smaller sediment b) Wind eroding pebbles into smaller pieces c) Water freezing and thawing in the cracks of pebbles d) Rain wearing away rocks into smaller and smaller pieces 8) What do floodplains, sandbars, and river deltas have in common? a) all formed by water erosion b) all formed by glacial erosion c) all formed by wind erosion d) all formed by sandblasting 9) Based on the information presented in the movie, what would be a simple way to prevent erosion? a) block wind b) plant trees and grass c) prevent rainfall d) prevent the flow of rivers 10) Why is it hard to see glacial erosion in action? a) glaciers are so big b) glaciers move very, very,very slowly c) because light from the glacier reflects so much d) glacial erosion is very subtle

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