Matter & Its Changes CW 1

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Across
  1. 2. Characteristics of matter that can be used to identify substances.
  2. 3. Substances that are combined to form products in a chemical reaction.
  3. 5. the particles in a solid _______, or move back and forth, in a fixed place
  4. 8. A substance that speeds up a chemical reaction.
  5. 9. change from a gas to a solid
  6. 10. the result of oxygen in the air reacting with the iron and causing erosion
  7. 12. change from a liquid to solid
  8. 14. the formula to calculate the density of a substance
  9. 16. degrees Celsius for the boiling point water, at sea level
  10. 17. the ability for metal to be hammered, pressed or rolled into thin sheets
  11. 20. anything that has mass and takes up space
  12. 21. change from a liquid to a gas
  13. 22. the amount of mass a material has in a given volume
  14. 24. degrees Celsius for the freezing point of water, at sea level
  15. 25. the temperature at which a liquid becomes a gas
  16. 27. has indefinite shape but definite volume
  17. 28. has indefinite shape and indefinite volume
Down
  1. 1. the number of states of matter
  2. 2. a characteristic of a material that you can observe or measure without changing the material
  3. 4. a change in the identity of a substance due to the chemical properties of that substance
  4. 6. law that states the mass of what you end with is always the same as the mass of what you start with
  5. 7. the shine of a metal
  6. 11. any characteristic that gives a substance the ability to undergo a change that results in a new substance
  7. 13. a change where the physical properties of a substance change but the substance does not change
  8. 15. change from a solid to a liquid
  9. 18. the ability for metal to be drawn into wires
  10. 19. The result of substances being combined in a chemical reaction.
  11. 20. the temperature at which a solid becomes a liquid
  12. 23. has a definite shape and definite volume
  13. 26. change from a solid to a gas