The sphere of very hot metal at the center of Earth.
The thick layer around Earth core.
The thin, rocky layer or Earth's surface.
Soft, nearly molten rock.
A huge block of Earth's crust
A process that breaks rocks down into small pieces.
The removal of small pieces of rock by water, ice and wind.
the conition of the air and sky from day to day.
water that falls to the ground as rain, sleet, hail, or snow.
how hot and cold the air is temperature.
the average weather over many yaers.
An intense wind and rain storm that forms over oceans in the tropics.
plant that grow in a region.
the layer formed by the uppermost branch.
a parklike combination grassland.
an area of cold climate and low-lying.
desert vegatation that needs little water.
trees that lose their leaves seasonally.
trees that produce cone to carry seeds.
an imaginary line through Earth between the NORTH and SOUTH poles, around which Earth turns.
the path one body make as it circles around another.
a single complete turn