Space STAAR Vocab

Front

Revolve (revolution)

Back

Move in a circle/ellipse around a center; orbit. Ex: Earth revolves around the sun.

Front

rotate (rotation)

Back

spinning of an object on its axis

Front

orbit

Back

the path one body in space follows around another; e.g., moon orbits Earth, planets orbit the sun.

Front

Axis: a line through the center of an object on which it turns (e.g., Earth rotates on its axis daily).

Back

Axis

Front

gravity

Back

the force that pulls objects toward each other.

Front

Satellite

Back

An object that orbits a planet.

Front

Atmosphere

Back

Mixture of gases surrounding a planet.

Front

Moon phases

Back

Different ways the moon appears in the sky as it orbits Earth.

Front

Crater

Back

Bowl-shaped landform on a planet or moon.

Front

Solar:

Back

About the sun.