Earth Science MEAP Words

35 terms by MrsGreen08

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air mass

a huge amount of air that is similar throughout

atmosphere

the layer of gases that surrounds Earth

chemical weathering

weathering that creates new materials

decomposer

an organism that breaks down dead plants and/or animals

deposition

process by which sediment is placed in new locations

dew point

temperature at which water starts to condense out of air

drought

prolonged and abnormal lack of ranifall

erosion

the moving of earth material by water, wind, ice, or gravity

fossil

remains of organisms that lived in a past time period

fog

condensed water vapor in cloudlike masses near the ground

groundwater

water beneath Earth's surface

humidity

a measure of the amount of water vapor in the air

humus

a substance in soil created by the breakdown of dead plants and/or animals

igneous

rock formed by the cooling of molten rock

landfills

places where waste is buried in large, plastic-lined holes

metamorphic

rocks that form by changing an existing rock with heat and/or pressure

ozone

a molecule made of three oxygen atoms

physical weathering

weathering that breaks bigger rocks into smaller ones

porous

full of pores allowing liquids to penetrate easily

relative humidity

the amount of water vapor in the air compared to how much could be in the air at that time

sedimentary

rock formed when layers of sediments harden over millions of years

temperature

average amount of kinetic energy in the molecules of a substance

topographic map

map that shows the surface features of the land with lines

altitude

the height above the ground

water vapor

water in the gas form

cold front

the leading edge of a cold air mass

lava

molten rock that reaches the Earth's surface through a volcano

magma

molten rock material under the Earth's crust

relief

the variations in elevation of Earth's surface

relief map

a map that shows the variations in elevation of Earth's surface

saturate

to soak, fill, or load to capacity

sediments

solid fragments that come from the weathering of rock

warm front

the leading edge of a warm air mass

water table

the level below which the ground is completely saturated with water

wetland

a lowland area, such as a marsh or swamp, which is saturated with moisture

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