Space Vocab- 42 Terms

Front

Attraction of bodies to each other with a force proportional to their masses.

Back

Gravity

Front

Four solid, dense, rocky planets inside the asteroid belt: Mercury, Venus, Earth, Mars.

Back

Inner Planets

Front

Four dense, rocky planets inside the asteroid belt: Mercury, Venus, Earth, Mars.

Back

Terrestrial Planets

Front

Four large outer planets made of hydrogen and helium, beyond the asteroid belt:

Back

Outer Planets

Front

Four large outer planets made of hydrogen and helium beyond the asteroid belt: Jupiter, Saturn, Uranus, Neptune.

Back

Gas Giants

Front

Rings of dust and rock encircling a planet.

Back

Planetary Rings

Front

2nd planet from the Sun, closest to Earth.

Back

Venus

Front

Bowl-shaped depressions on the Moon's surface from meteorite impacts.

Back

Crater

Front

Fourth planet from the Sun; once had flowing liquid water.

Back

Mars

Front

Largest moons of Jupiter discovered by Galileo: Io, Europa, Ganymede, Callisto.

Back

Galilean Moons