Chemistry

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Across
  1. 2. a process in which one or more substances are converted to one or more different substances
  2. 5. a particle that has a mass nearly equal to that of the proton but no electrical charge
  3. 8. a measure of how much a substance tends to react with other things
  4. 9. changes in matter that do not change what the matter is (change in color, texture, shape or state)
  5. 10. the branch of science that studies the properties of matter and how matter interacts with energy
Down
  1. 1. a very small particle that exists in the nucleus of every atom and has a positive charge of electricity.
  2. 3. the shiny quality of a surface that reflects light
  3. 4. anything that has weight and takes up space
  4. 6. the center of an atom
  5. 7. the smallest building blocks of matter and make up everything around us