| A | B |
|---|
| Rotation | The condition where the Earth spins on its axis for 1 complete turn |
| Axis | An imaginary line through the center of the Earth from the North Pole to the South Pole |
| Time Zone | An area of the world where all clocks re set to the same time. There are 24 major time zones on Earth |
| Orbit | The path a planet follows around the sun |
| Revolution | One complete orbit around the sun |
| Mooon Phases | The different shapes of the moon as visible from the Earth |
| Full Moon | When the moon looks like a completely lighted circle from Earth |
| New Moon | When the moon is dark and not visible |
| Lunar Cycle | The phases of the moon, which take 29.5 days to complete |
