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Natural Disasters #1
Natural disaster words
10
Science
6th Grade
09/25/2013

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Term
Buoyancy
Definition
The tendency to float caused by a fluid opposing an objects weight.
Term
Coriolis Effect
Definition
The effect that causes moving air and water to turn left in the southern hemisphere and turn right in the northern hemisphere due to Earth’s rotation.
Term
Barometer
Definition
An instrument used to measure atmospheric pressure.
Term
Density
Definition
The measure of the mass of an object divided by its volume.

D = m/v
Term
Hurricane
Definition
A large, severe storm that forms over tropical oceans, has winds of at least 120 km/hr, and loses power when it reaches land.
Term
Jet Stream
Definition
A narrow belt of strong winds that blows near the top of the troposphere.
Term
Sea Breeze
Definition
The movement of air from sea to land during the day when cooler air from above the water moves over the land, forcing the heated, less dense air above the land to rise.
Term
Land Breeze
Definition
The movement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea.
Term
Tornado
Definition
A violent, whirling windstorm that crosses land in a narrow path and can result from wind shears inside a thunderhead.
Term
Wind
Definition
Air moving in a specific direction.
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