Across
- 3. Type of tide, one high, one low per day
- 6. Point at which Earth is closest to the sun
- 8. The splitting of atoms
- 9. Unit of measurement (average distance between Earth and the Sun)
- 10. Point at which the Earth is farthest from the sun
- 11. Type of tide, two high, two low each day
Down
- 1. Length of time it takes to revolve or rotate once around a focal point
- 2. The center of mass of two or more objects orbiting each other
- 4. The rocking or swaying in the axis of rotation
- 5. Process by which plants convert sunlight, water, and carbon dioxide into glucose
- 7. The slow circular motion of the axis of the earth
- 8. Two atoms joining into one larger