Science Class

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Across
  1. 2. a substance made of two or more elements
  2. 5. a substance that cannot be broken down
  3. 7. matter cannot escape to the surroundings
  4. 9. positively charged particles
  5. 11. level the specific amount of energy an element has
  6. 13. particles with no charge
  7. 15. a change in which the appearance or form changes, but nothing new is made
Down
  1. 1. matter can escape to the surroundings
  2. 2. a change in which a new substance is chemically formed
  3. 3. anything that has mass or takes up space
  4. 4. nothing can be created or destroyed
  5. 5. negatively charged particles
  6. 6. the beginning of an equation
  7. 8. the smallest particle of an element
  8. 10. the end of an equation
  9. 12. the center of an atom
  10. 14. two or more substances that are mixed together