Terms to know
The spinning motion of the earth(24 hours–reason for night and day, goes from east to west
Rotation
Largest continent
Asia
Made from mud
Shale
Decayed material in soil
Humus
Imaginary line that runs through the earth(tilted, not up and down)
Axis
the pathway, or orbit, the earth takes around the sun (365 1/4 days
Revolution
Called the island continent
Australia
Can be made from shell
Limestone
Upper layer of soil which supports plant life, more fertile than the layer beneath it
Topsoil
Has the countries of France, Germany, Nigeria
Europe
Deposit of sand and soil , usually in a triangular shape, at the mouth of some rivers
Delta
Least populated continent
Antarctica
Floats
Pumice
Very fine particles of soil which holds water
Clay
Leaves a white mark
Chalk
The wearing away of the earth‘s topsoil
Erosion
has the country’s of Egypt and Nigeria
Africa
Can be used to write on
Slate
Layer of rock below the subsoil
Bedrock
Shiny, black, and was used to make arrowheads
Obsidian
The force which draws things down toward the center of the earth(reason why water wants to run down stream)
Gravity
Has the countries of Brazil, Chile, Peru
South America
Was used to make the Lincoln Memorial
Marble
Solid layer of rock which begins beneath the soil and goes down about 5 miles to 25 miles below the earth’s surface
Crust
Contains pebbles that are cemented together
Conglomerate