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Unit 8 Vocabulary

A review for Unit 8 Vocabulary

TermDefinition
Weathering The breaking down of rock on Earth's surface into smaller pieces
Erosion The process of moving sediment from one place to another
Deposition The dropping or settling of eroded materials
Sedimentary Rock Formed by weathering, erosion, deposition, compaction, and cementation
Fossil The remains or traces of a plant or animal that lived long ago
Fossil Fuel Fuel, such as coal, oil, natural gas, formed from the remains of once-living things
Solubility The ability of a substance to dissolve in another substance
Variable Any condition that can be changed in an experiment
Refraction The bending of light waves as they pass from one material to another
Reflection The bouncing of light waves when they encounter an obstacle
Control The experimental setup to which you will compare all other setups
Pressure The force that is produced when something presses against something else
Decay Process of decomposition
Excavation Digging up fossils
Friction A force that slows or stops motion when objects rub together
Natural resource Anything from nature that people can use
Renewable resource A resource that can be replaced within a reasonable amount of time
Nonrenewable resource A resource that, once used, cannot be replaced in a reasonable amount of time
Pollution any waste product or contamination that harms or dirties an ecosystem and harms organisms
Conservation the process of preserving and protecting an ecosystem or a resource
Created by: whardcastle
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