Unit B - Matter and Chemical Change Crossword

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Across
  1. 2. A substance that reacts with a substance
  2. 3. Mixture of two or more pure substances that looks like one substance
  3. 4. A new substance created with a chemical reaction
  4. 7. A change in matter that is reversible
  5. 8. Releases heat energy
  6. 10. A change in matter that is non-reversible
  7. 11. An experiment in which one or more products of a chemical reaction can escape
  8. 12. Anything on the periodic table, made of one atom
  9. 14. Organic catalysts
  10. 15. The speed of a chemical reaction
  11. 17. Total mass of these products is always the same as the total mass of the reactants
  12. 18. Workplace Hazardous Material Information System (abbreviation)
  13. 20. When non-metals combine
  14. 22. Is a slow chemical change
  15. 23. Chemical combination of two or more elements in a specific ratio
Down
  1. 1. Absorbs heat energy
  2. 3. Cloudy mixture that can be separated
  3. 5. Is a chemical reaction that takes place in the cells in your body
  4. 6. Occurs when two or more materials react and create new materials
  5. 9. Anything that has mass and occupies space
  6. 10. Are substances that help a reaction proceed faster
  7. 13. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  8. 16. An atom or a group of atoms that had been electrically charged
  9. 19. metal + non-metal
  10. 21. Cloudy mixture that can't be separated