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4th Science Ch5

TermDefinition
Humus a material in soil made up of decayed plants and animals
Texture feel of soil based on the size of the particles in the soil
Loam a soil mixture of sand, silt, clay, humus, air, and water
Crust the thin layer of rock that covers Earth's surface
Landform is a natural land feature on Earth's surface
Weathering the process in which the rocks in Earth's crust are slowly broken into smaller pieces
Erosion the process of carrying away weathered bits of rock
Deposition the laying down of pieces of rock that have been weathered and eroded
Pollution waste from products made or used by people
Nonrenewable Resource resource that exists in limited amounts or is used faster than it can be replaced in nature
Reclamation process of restoring land after it has been used
Ore a rock that is rich in valuable minerals like iron ore or copper ore
Conservation using what you need as efficiently as possible
Renewable Resource a resource that can be replaced
Created by: t_fowler
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