A
B
C
D
E
100
flowing fresh water that moves downhill
What is a river?
100
rocks that form from molten rock
What are igneous or volcanic rocks?
100
Earthquakes, volcanoes, floods
What are three ways Earth's surface can change RAPIDLY?
100
any form of water that falls to Earth (snow, rain, sleet, hail)
What is precipitation?
100
natural features on Earth's surface
What are landforms?
200
when laval cools down very slowly
When are very LARGE crystals in igneous rocks formed?
200
the way the surface of a mineral reflects light
What is luster?
200
a period of unusually low rainfall or snowfall
What is a drought?
200
the laying down of pieces of rock
What is deposition?
200
rocks that form when layers of sediments settle on top of one another to harden
What are sedimentary rocks?
300
a large body of slowly moving ice
What is a glacier?
300
the movement of water from Earth's surface to its atmosphere and back again
What is the water cycle?
300
molten rock before it reaches the surface of the Earth
What is magma?
300
the process of carrying away weathered bits of rock
What is erosion?
300
water covering normally dry land
What is a flood?
400
natural, nonliving solid crystals that make up rocks
What are minerals?
400
the process by which Earth's crust is slowly broken down into smaller pieces
What is weathering?
400
a break or crack in rocks where Earth's crust can move suddenly
What is a fault?
400
the color of the powder that a mineral leaves when it is scratched across a special plate
What is streak?
400
rocks that have changed as a result of heat and pressure
What are metamorphic rocks?
500
when rocks are changed into different materials by checmicals
What is chemical weathering?
500
when lava cools down very quickly
When are very small crystals in igneous rocks formed?
500
the process of water vapor becoming liquid water
What is condensation?
500
any water that is underground
What is groundwater?
500
very large pieces of the Earth's crust and the top of the mantle
What are plates?
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