8th Grade Study Material Earth Science Flashcards
______________ are the physical and natural features of the surface of Earth. Some examples are valleys, rivers, coastlines, dunes and deltas.
Landforms
______________ are a narrow strip of land that borders a body of water along a continent or island. Nonstop wave action causes the coastline to constantly change. Plate tectonic movement contributes to the changing coastline.
Coastlines
Warm air rises as it is less dense than cooler air. As the warm air rises, cooler air from over the ocean moves over land to take its place. It is this movement of warm and cool air that creates a _______________.
SEA BREEZE
The opposite happens at night when the surface of land cools faster than the surface of water. The warmer air over the ocean rises and cooler land air flows out to sea to replace it.
LAND BREEZE
____________ areas usually are areas of fair, settled weather.
High-pressure
______________ areas are places where the atmosphere is relatively thin. Winds blow inward toward these areas. This causes air to rise, producing clouds and condensation.
Low-pressure
__________ land formation that occurs when sedimentary materials such as rocks, gravel, and silt, are deposited onto land as a result of decreasing or stopped water flow from a river or stream source.
Alluvial fan
___________ an island or group of islands, usually in the ocean, that protects the nearby mainland coast from erosion.
Barrier Island
An area of land largely enclosed by higher land.
Basin
A river that has three or move channels that come back together or drain into the same body of water.
Braided River
A rock formation with vertical or nearly vertical sides that is flat on top and taller than it is wide
Butte
__________ is a narrow valley with steep sides; usually created by erosion
Canyon
one of the seven largest bodies of land on earth
Continent
