Science Cross-Word

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Across
  1. 3. The positive and negative ions in two switch places
  2. 5. two or more ions come together and are held together by charge differences.
  3. 9. A subatomic particle with no electrical charge
  4. 10. The table where all elements are found
  5. 12. A subatomic particle with a positive electrical charge
  6. 15. A change that can be undone
  7. 17. A compound containing carbon and hydrogen (sometimes oxygen)produce carbon dioxide and water.
  8. 18. A compound is made from simpler materials
  9. 20. Found on the right side of the periodic table
  10. 21. One element that starts out by itself replaces another element in a compound,Kicking it out
  11. 22. A subatomic particle with a negative electrical charge
  12. 24. Atoms with with the same number of protons but different number of neutrons
Down
  1. 1. A change that cannot be undone
  2. 2. How much space an object takes up
  3. 4. The end result of an experiment is the ____
  4. 6. A compound is broken down into a simpler compound,or all the way down to the elements that make it up.
  5. 7. The chemical that changes in a experiment is the _____
  6. 8. Found on the left side of the periodic table
  7. 11. Numbers added together are called an ____
  8. 13. How easily two products react to each other
  9. 14. temperature of the immediate surroundings to rise
  10. 16. absorbs heat and cools the surroundings
  11. 19. sharing of electrons between two or more atoms
  12. 23. a chemical species which holds a positive or negative charge of some magnitude.