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Science Vocab 3.28.13
Science Vocabulary
18
Science
3rd Grade
03/28/2013

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Term
lava
Definition
magma that flows out onto the Earth’s surface
Term
valley
Definition
a low, narrow area in the Earth’s crust
Term
landform
Definition
a solid feature formed on the Earth’s crust
Term
loam
Definition
a mixture of sand, silt, and clay
Term
soil
Definition
a layer of loose material that covers most of the Earth’s land
Term
weathering
Definition
any action that breaks rocks into smaller pieces
Term
erosion
Definition
the movement of weathered materials
Term
sedimentary rock
Definition
rock that forms from sediments
Term
mineral
Definition
a natural material that forms from nonliving matter
Term
igneous rock
Definition
rock that forms when melted rock cools and hardens
Term
rock
Definition
a natural, solid, nonliving material made of one or more minerals
Term
metamorphic rock
Definition
rock that has been changed by heat and pressure
Term
condensation
Definition
the change from a gas to a liquid
Term
water cycle
Definition
the movement of water from Earth’s surface into the air and back again
Term
precipitation
Definition
water that falls to Earth
Term
atmosphere
Definition
the blanket of air that surrounds Earth
Term
humidity
Definition
the amount of water vapor in the air
Term
weather
Definition
what the air is like outside in a single moment
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