| A | B |
|---|
| eclipse | moon's shadow hit Earth or Earth's shadow hits the moon |
| solar eclipse | moon passes between Earth and Sun; blocking Sun |
| lunar eclipse | the Earth is directly between the moon and Sun |
| a lunar eclipse can only occur during | Full moon |
| the darkest part of the moon's shadow | umbra |
| the less dark and smaller part of shadow during eclipse | penumbra |
| penumbra | partial eclipse occurs here |
| umbra | total eclipse occurs here |
| tide | rise and fall of ocean water |
| gravity | a force that pulls the moon and Earth together |
| Moon | controls the ocean tides |
