Atoms

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Across
  1. 2. Different elements join together to form a ___
  2. 4. Educated guess for what you think will happen in an experiment
  3. 7. Opinion based on what you already know
  4. 9. How many bonds does carbon have?
  5. 11. Group in an experiment that is not tested on
  6. 12. Something in an experiment that must remain the same
  7. 15. Fact based on your 5 senses
  8. 16. Variable you change in an experiment
Down
  1. 1. 1st step of the scientific method
  2. 3. Variable that changes because of what you changed
  3. 5. Found in the nucleus and has a positive charge
  4. 6. All matter is made of ___
  5. 8. Found outside the nucleus and has a negative charge
  6. 10. How many bonds does hydrogen have?
  7. 13. Found in the nucleus and has a neutral charge
  8. 14. When at least two atoms join together they form a ____