Unit B - Matter and Chemical Change Crossword

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