Earth and Planets Vocab quizziz #2 1st attempt

Front

Ignited means

Back

catch on fire

Front

Gravity means

Back

an attractive force depending on mass and distance.

Front

Outer space is

Back

the physical universe beyond Earth's atmosphere

Front

A planet is

Back

a celestial body moving in an elliptical orbit around a star.

Front

A galaxy is

Back

A system of millions or billions of stars, along with gas and dust, held by gravity.

Front

Sun is

Back

the star around which Earth orbits

Front

4 planets closest to the sun are called

Back

rocky planets

Front

4 planets farthest from the sun are called

Back

gas giants

Front

Density is

Back

mass/volume

Front

Mass is

Back

the amount of matter something contains