Across
- 1. protons, neutrons and electrons.
- 5. law of action and reaction.
- 6. Color, gas, light, temperature or precipitate change in a substance.
- 8. when new solids are formed in a substance.
- 12. elements on the right or left are reactive.
- 14. number that represents the # of molecules in an atom.
- 17. newtons 1st law.
- 18. the distance traveled divided by the time.
- 19. smallest particle of an element.
- 20. a change in speed or direction.
Down
- 2. shows elevation of landforms.
- 3. positive charge.
- 4. malleable, luster, ductile and a conductor.
- 7. speed plus direction.
- 9. person who came up with the theory of continental drift.
- 10. theorgy of continental plate drift in 1912.
- 11. matter is neither created nor destroyed.
- 13. properties of metal and non-metal.
- 15. brittle, dull and is an insulator.
- 16. tug of war where no one wins is an example of what force.