Across
- 2. the collection of eight planets and their moons orbiting the sin
- 5. The curved path of a celestial object around a star
- 7. a small rocky body orbiting the sun
- 9. a large body of matter with no definite shape
- 10. a force that attracts a body towards the center of the earth
Down
- 1. all existing matter and space considered as a whole
- 3. the planet we live on
- 4. the sum of all forces acting on an object
- 6. a system of millions or billions of stars
- 8. amount of space between two things or people