Across
- 1. an amount/quantity of something
- 4. the largest planet in our solar system
- 5. the curved path of a celestial object or spacecraft around a star, planet, or moon
- 7. a tendency to do nothing or to remain unchanged
- 9. a cloud of gas and dust in outer space
- 10. the force that attracts a body toward the center of the earth
Down
- 2. a star that had a catastrophic explosion that ejects most of its mass
- 3. a famous scientist who first started discussing gravity (His last name)
- 6. a measure of the gravitational pull on that certain object
- 8. the smallest planet in the solar system