7.6 CW 1

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Across
  1. 3. Two or more atoms stuck together.
  2. 10. Something you can observe or measure without changing it.
  3. 13. Matter made of only one kind of particle.
  4. 14. A system where matter cannot get in or out.
  5. 15. Atoms moving around to make new molecules.
  6. 19. A homogeneous mixture where one thing is dissolved in another.
  7. 20. When a substance mixes evenly into a liquid.
  8. 21. In a closed system the total mass stays the same.
  9. 22. A reaction written so each type of atom matches on both sides.
  10. 23. A mixture with tiny particles mixed in that don’t quickly settle.
Down
  1. 1. A tiny piece of matter, like an atom or molecule.
  2. 2. How much space something takes up.
  3. 3. Two or more substances mixed together but not bonded.
  4. 4. What you start with in a reaction.
  5. 5. A “code” that shows what atoms are in something and how many.
  6. 6. What you get at the end of a reaction.
  7. 7. A system where matter can get in or out.
  8. 8. A pure substance made from two or more elements joined together.
  9. 9. A mixture that is not the same everywhere; you can see different parts.
  10. 11. A mixture where bigger particles can settle to the bottom.
  11. 12. How much matter something has.
  12. 16. A mixture that is the same everywhere; it looks uniform.
  13. 17. When substances change into new substances.
  14. 18. A way to separate a mixture without making new substances.