Earth Sun Moon

Front

To spin on an axis

Back

rotate

Front

 to spin on an axis

Back

rotate

Front

the air that surrounds the Earth; it is made of a mixture of gases

Back

atmosphere

Front

the imaginary line around which Earth rotates

Back

axis

Front

Order of the planets: Mars, Venus, Earth, Jupiter, Saturn, Mercury, Uranus, Neptune

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Front

the force of attraction between objects, such as the attraction between Earth and objects on it

Back

gravity

Front

an object, such as a moon, that moves around a much larger object

Back

satellite

Front

to go around, or orbit, another object

Back

revolve

Front

the path of one object in space around another

Back

orbit

Front

caused by the tilt of the Earth (23.5*)

Back

seasons