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Science Study Cards

QuestionAnswer
What is deflation? wind picks up and moves sediment
what is deposition? sediment and rocks are deposited or dropped off into a new location
What are the 3 types of rocks? How are they formed? Sedimentory, Metamorphic, Igneous; Sedimentory formed by sediment and water, Metamorphic changed by heat and pressure, Igneous formed by cooling magma
What is weathering? The breaking down of rocks into smaller peices
What is Abrasion? when water of wind rubs against rocks
What is Exfoliation? The peeling of rocks, result of pressure release
What is frost wedging? Water freezes in rocks, expands and breaks
What is frost heaving? Water freezes under rocks, and pushes up out of the ground
What is pressure release? When pressure is reduced, causes rapid expansion
What is hoodo? Unusual formations of rock, caused by wind abrasion
What is Chemical Weathering? Rocks are transformed into new substances
What is Oxidation? When oxygen combines with iron forming rust
What is soil? Loose material on the earth's surface
What are caves formed by? Wind, crashing waves, and running water
What is Machanical or Physical Weathering? Rocks are broken down into smaller and smaller peices
Name the 3 soil particles from least to greatest Clay, Silt, Sand
What is Erosion? The movement of sediment from one place to another
What is Loam? Fertile soil with each type of soil particle in it
Name the 5 horizons, and what's in them O: organic, consists of leaf litter and humus, A: topsoil, plants gemanate and grow here, B: subsoil, lots of minerals, mostly weathered rock, C: Rich in nutrients, lots of rock, R: regolith or bedrock horizon, effects the soil texture above it
What is the main force of erosion? Gravity
What is dredging? Used to remove sand and sediment
True Or False: Deflation happens in wet areas False; it happens in dry areas
What is teture? how much of each particle is in the soil
What are the 4 main agents of erosion? Ice, wind, water, gravity
What forms when stalagmites and stalagmites grow together? Colums
Where do stalagtites grow? On the cave celing
Where do stalagmites grow? on the cave floor
What are buetifal formations forme by dissolved calcite out of the water? Spelleothems
What are cave explorers called? Spelunkers
True Or False: the layerd look is because the heaveast material drops first and the lightest last True
What is an area that commonly floods? A flood plain
Name the 5 mass movements of erosion Soil creep, mud flow: most devastating, rock slide, avalanche, and earth flow
What is sediment carried by the streams? It's load
What is a dissolved load? Minerals dissolved in water
What is a suspended load? undissolved sediment carried by a stream
What is a delta? area of sediment at the mouth of a river
What are caves carved out by? Waves
What are sandbars formed by? Sand deposits
Beach erosion results in what? Building destruction
True Or False: Wind is a powerful force of erosion True
What are piles of sand on shore? Sand dunes
True Or False: Dust storms are high in the air True
True Or False: Sandstorms are high in the air False, dust storms are, sand storms are lower to the ground as they carry heavier sand particles, they bounce along
What's a glacier? huge ice formations on land; layers of unmelted snow
What is gouging? huge cuts in the ground underneath the glacier
What is plucking? pulling huge peices of bedrock loose and carries it along
What's a moraine? piles of soil and rock left behind by a glacier
What are 2 causes of erosion? Natural processes; God's plan for ther earth, and man-made processes like land development and industries
Created by: user-1964928
 

 



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