volcano
a place in the earth where magma can erupt as lava
What is a volcano?
the place where the river begins
What is a source?
the outermost layer of the earth
What is the crust?
soil in which the plants grow well
What is fertile?
the forming of soil from rock
What is weathering?
hot , liquid rock found in the earth's mantle
What is magma?
the place where the river ends
What is a mouth?
the middle layer of the earth
What is the mantle?
the loss of topsoil by water and wind
What is erosion?
three layers of soil
What is topsoil, subsoil, and bedrock?
melted rock that flows from a volcano
What is lava?
percipatation on land that eventually trickles into streams
What is a water run-off?
the inner part of the earth
What is the core?
a ditch formed by soil erosion
What is a gully?
the coldest part of the earth
What are the poles?
a natrual formation of rock or soil on the earth's surface
What is a landform?
five oceans
What are the numbers of oceans on earth?
the layer of rock beneath the subsoil; part of the earth's crust
What is bedrock?
the landform at the mouth of a river made from deposited soil and sand
What is a delta?
seven continents
What are the numbers of the continents?
a large mass of rock or soil from a mountain or cliff
What is a landslide?
70% of water
What is the amount of water that covers the earth surface?
a break between two of the earth's plates where earthquakes can happen
What is a fault?
water, the right kind of air, and good soil
What are natrual resources?
3 parts of the earth's structure
crust, mantle, and core