7th Grade Chemistry Crossword

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Across
  1. 3. a ___________ change is a change of one state to another without the change in chemical composition
  2. 5. positive charged particle in the nucleus
  3. 7. change, a change in matter that produces one or more new substances
  4. 8. the change from solid to gas
  5. 9. pure substance that cannot be broken down into any other substances
  6. 11. a horizontal row of elements in the periodic table
  7. 12. a compound that contains carbon and hydrogen
  8. 18. parts of a mixture that are evenly distributed
  9. 20. when you add water and food coloring and the water ends up being very dark, this is a ______________ solution
  10. 21. the change from a liquid to gas
Down
  1. 1. table, a place you can find all the known elements
  2. 2. negatively charged particle outside the nucleus
  3. 4. parts of a mixture that are not evenly distributed
  4. 6. anything that has mass and takes up space
  5. 10. fastest form of matter
  6. 13. a substance that is made up of atoms of two or more different elements
  7. 14. a _____________ electron is on the outermost energy level of an atom
  8. 15. the fastest form of matter in the universe
  9. 16. a homogeneous mixture of one or more solutes dissolved in a solvent
  10. 17. atoms of the same element that have different number of neutrons
  11. 19. neutrally charged particle in the nucleus