| __ | 1. | Astronomical Unit | | A. | Described as distance between the Sun and Earth. |
| __ | 2. | Buoyancy | | B. | Amount of matter in an object; measured in kg. |
| __ | 3. | Eclipse | | C. | Changes the shape, speed or direction of an object. |
| __ | 4. | Force | | D. | Non-contact force that exists between any two objects. |
| __ | 5. | Friction | | E. | When one object in space casts a shadow on another object. |
| __ | 6. | Gravity | | F. | Effect of gravity on mass; measured in Newtons (N). |
| __ | 7. | Mass | | G. | Upward push on an object that is floating. |
| __ | 8. | Orbit | | H. | Travel around an object. |
| __ | 9. | Tide | | I. | Force applied between two objects in contact with each other |
| __ | 10. | Weight | | J. | Rise and fall of the ocean once every 12.5 hours. |