Across
- 2. The increase of visible sunlight from the moon
- 3. When the Moon and Sun are in line and cause stronger ocean level rise and fall
- 4. Occurs when the Moon moves into Earth's shadow
- 6. 1 high tide and 1 low tide within 24 hours
- 7. Theory states Earth and Moon formed at the same time
- 12. 2 high tides and 2 low tides within 24 hours
- 14. When the Moon and Sun are at right angles to the Earth, causing weaker rise and fall of ocean level
- 15. Vertical distance between high tide and low tide
Down
- 1. Area that does not receive direct sunlight from an eclipse
- 2. The decrease of visible sunlight from the moon
- 3. Occurs when the Sun is blocked out by the Moon
- 5. Theory that says the Moon was pulled in by Earth's gravitational pull
- 8. Mars sized object crashed into Earth, ejecting material into space that formed the Moon
- 9. 1st American in space
- 10. Periodic rise and fall of ocean levels
- 11. Changes in appearance of the Moon
- 13. 1st satellite in space, sent by Soviet Russia
- 16. This Apollo mission was the first to land a man on the moon
