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GCh. 2 L1-3
Planet Earth
20
Geography
6th Grade
08/29/2011

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Cards

Term
solar energy
Definition
energy from the sun
Term
rotation
Definition
one complete spin of Earth on its axis
Term
revolution
Definition
trip around the sun
Term
latitude
Definition
distance north or south of the Equator
Term
tropics
Definition
regions close to the Equator
Term
tropics
Definition
regions close to the Equator
Term
freshwater
Definition
water without salt
Term
glaciers
Definition
large areas of slow-moving ice
Term
surface water
Definition
water that is found in Earth's streams, rivers, and lakes
Term
precipitation
Definition
water that falls to Earth's surface as rain, snow, sleet, or hail
Term
ground water
Definition
water found below Earth's surface
Term
water vapor
Definition
water in the air that appears as an invisible gas
Term
water cycle
Definition
movement of water from Earth's surface to the atmosphere and back
Term
landforms
Definition
shapes on the planet's surface
Term
continents
Definition
large landmasses
Term
plate tectonics
Definition
a theory that suggests that Earth's surface is divided into a dozen or so slow-moving plates, or pieces of Earth's crust
Term
lava
Definition
magma that reaches the Earth's surface
Term
earthquakes
Definition
sudden, violent movements of Earth's crust
Term
weathering
Definition
the process by which rock is broken down into smaller pieces
Term
erosion
Definition
the movement of sediment from one location to another
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