Across
- 3. lost electrons that make a charge positive
- 6. a gas giant, second from thasteroidid belt
- 8. a pure substance that can’t be broken down
- 10. Reactive nonmettalic elements on the periodic table
- 11. A mixture that is not the same throughout
- 12. the summer___ is the longest day of the year
- 13. the first element on the periodic table
Down
- 1. A vague observation using your senses alone
- 2. groups of ddifferentpopulations
- 4. the result when gravity pulls dust and gas together in our solar system
- 5. the last orbit of an atom
- 7. ___electricity doesn't move
- 9. An atom when it gains or loses electrons