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Lesson 4 Science

Lesson 4

I am loose pieces of minerals, rock, and organic material carried and deposited by rivers. Sediment
I am a pricess that happens when gravity pulls materials slowly downhill mass wasting
I drop off particles carried by erosion from another location. depostions
I am the breaking down of rocks into smaller pieces by natural processes. weathering
I form along the sides of and in front of glaciers and am left behind when they melt moraine
I pick up and remove rock pieces and other particles. Erosion
Glaciers carry me, and I fall to the ground in a jumble when they melt. till
I am a material made of decayes plant and animal remains. humus
I am made up fweathered rock, air, water, living things, and humus. soil
A force that breaks down rocks into smaller pieces by natural processes is called weathering
Freezing water, moving water, plants, and animals cause the breaking down of rock called mechanical weathering
Oxygen and acids cause the breaking down of rock by changes in its chemical composition called chemical weathering
When a glarcier melts, the rocks it carried fall to the ground in a jumble called till
Created by: amarintzer