"Matter and Change"

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Across
  1. 2. a substance made from two or more elements, chemically combined.
  2. 3. beginning substances that start a reaction.
  3. 6. is the study of the composition, structure, and properties of matter and the changes it undergoes.
  4. 8. substances that are formed during the reaction.
  5. 11. depends on the type of matter not the amount present.
  6. 13. is the smallest unit of an element that maintains the properties of that element.
  7. 14. is a pure substance made of only one kind of atom.
  8. 15. is always involved when physical and chemical changes occur.
Down
  1. 1. a process that absorbs energy from the suroundings.
  2. 4. a substance that is surrently a gas, but normally is a liquid or solid at room temperature.
  3. 5. a process that releases energy into the surroundings.
  4. 7. depends on the amount of matter in the sample.
  5. 9. is anything with mass that occupies space.
  6. 10. is a measure of the amount of matter.
  7. 12. is a measure of the amount of space that is occupied (a three dimensional value such as cm^3 or mL).