Across
- 2. Happens during 1st quarter moon and 3d quarter moon
- 5. Anything related to earth
- 6. Happens during new moon and full moon
- 7. The ocean gets high and low twice each day while the earth rotates
Down
- 1. A area between the high and low tides
- 3. The force of it keeps all the planets in orbit around the sun
- 4. The lower ocean zone