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ch 9 scott foreman

4th grade science

QuestionAnswer
The wearing away of rocks weathering
The movement of weathered pieces of rock erosion
A natural feature on Earth's surface ; landforms include mountains,hills,valleys,plains,plateaus and coastal features. landforms
the laying down of rock , soil ,organic matter or other material on the surface of the earth deposition
a rapid downhill movement of large amounts of rock and soil landslide
What are 5 examples of landforms? mountains, plateaus, penisulas, valleys,and canyons
what are 4 causes of weathering? water, ice, temperture change and chemicals
why do the cracks in a rock get larger because water has froze in them? because the ice expands and makes the cracks larger
what particles are the first to settle as moving water slows? the larger pebbles settle to the bottom first
list 3 things that cause both erosion and deposition. water, wind and ice
how is a landslide different from other kinds of erosion and deposition? beause a landslide is a rapid downhill movement
what causes magma beneath a volcano to rise to the surface? gas in magma forces it upward
why are some volcanic eruptions more powerful than others? the temperature and the type of rock that makes up the magma determine the type of eruption
Created by: jamjon93
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