Intro to Planet Earth Vocab

Front

Thin layer of gases forming Earth's outermost layer

Back

atmosphere

Front

Imaginary line through a planet’s center and poles, around which it rotates.

Back

axis

Front

Parts of Earth with living organisms

Back

biosphere

Front

Natural process that builds up Earth’s surface

Back

constructive force

Front

A large, round pit from a meteoroid impact.

Back

Crater

Front

Natural process that wears away Earth's surface

Back

Destructive force

Front

Ability to do work or cause change

Back

energy

Front

Imaginary circle around Earth, equidistant from poles, dividing it into northern and southern hemispheres.

Back

equator

Front

Times when the sun is directly over the equator

Back

equinox

Front

Push or pull of an object

Back

force