Unit B - Matter and Chemical Change Crossword

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