Physical Science Semester 1 Project

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Across
  1. 5. Written form of a chemical reaction
  2. 7. Formed the basis of atomic theory as we know it today
  3. 8. determined that electrons occupy set energy levels
  4. 10. chemical reaction that releases energy
  5. 11. electrons are given and taken
  6. 12. Discovered the nucleus
  7. 15. Discovered the electron
  8. 16. electrons are shared
  9. 18. Matter cannot be created or destroyed
  10. 20. minimum energy required to start a chemical reaction
Down
  1. 1. Substance formed during the reaction
  2. 2. electrons flow in an electron sea
  3. 3. Substance Undergoes change
  4. 4. organized plan for gathering, organizing, and communicating information
  5. 6. chemical reaction that absorbs energy
  6. 9. speed of any chemical reaction
  7. 13. Philosopher from Ancient Greece
  8. 14. electrons in the outermost shell
  9. 17. amount of energy required to pull two atoms apart
  10. 19. mass of an individual atom