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10 terms

Earth Science Chapter 7 fill in the blank

Chapter 7 fill in the blank
STUDY
PLAY
oxidation
occurs when metal is exposed to rain; also known as rusting
chemical weathering
occurs when chemical reactions dissolve the minerals in rocks or change them into different minerals
leaching
the process by which water moves minerals down from one soil layer to another
mechanical weathering
water freezing and cracking rock and tree roots spreading through rock cause this
soil
mixture of weathered rock, decayed organic matter, mineral fragments, water, and air
ice wedging
process of freezing and thawing cause this type of weathering
humus
organic matter made of decayed plants and animals
soil profile
the layers of soil that you can see on a hill side when the soil and rock have been exposed
no-till farming
leaving plant stalks undisturbed in the field to cover the soil
shelter belts
rows of trees planted to reduce erosion of farm land