8.4 Earth in Space Vocab

Front

Orbit

Back

The motion of Earth around the Sun.

Front

Elevation

Back

The angle of an object above the horizon.

Front

Transit

Back

Pass across.

Front

Gravitational Forces

Back

Always attractive forces.

Front

Reflect

Back

Bounce off.

Front

Revolution

Back

The movement of one object around another, such as Earth around the Sun.

Front

Rotation

Back

The spinning of Earth on its axis.

Front

Axis

Back

An imaginary line around which an object rotates.

Front

Celestial Body

Back

Any natural object outside of Earth's atmosphere, such as stars, planets, and moons.

Front

Solar System

Back

A collection of celestial bodies, including the Sun, planets, moons, and other objects that orbit the Sun.