| A | B |
|---|
| Rotate | Spin |
| Earth's axis | Imaginary line drawn from the North Pole to the South Pole |
| Revolve | Move in a circular, or nearly circular path around something else |
| Orbit | The path a revolving object moves along |
| New moon | When you can’t see the lighted half of the moon |
| Star | Hot glowing sphere of gases that give off energy |
| Planet | Satellites of the Sun |
| Full moon | When the lighted side of the moon is facing Earth. |
| Solar System | The Sun, Earth, 7 other planets, their moons, and smaller objects |
| Inner planets | Planets closest to the sun. They are warmer and smaller than other planets -Mercury, Venus, Earth, Mars |
| Outer Planets | Dark, cold, gas planets far from Sun. Each has moons and a ring system. Jupiter, Saturn, Uranus, Neptune |
| Asteroids | Chunks of rock or metal that orbit the Sun. |
| Comets | Move around the Sun in long narrow orbits. Chunks of ice mixed with bits of rock and dust. |
| Meteorite | When a meteor hits Earth |
| Constellation | Pattern or picture outlined by stars |
