Science Review

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Across
  1. 1. a substance that has no fixed size or shape
  2. 3. anything that takes up space
  3. 5. a negatively charged subatomic particle
  4. 6. the smallest part of a substance
  5. 8. a positively charged subatomic particle
  6. 11. shell the outside part of an atom
  7. 13. middle of the cell
  8. 15. cloud model - the area around the nucleus where the electrons are found
  9. 17. non metal element
  10. 18. electron energy level of an atom
  11. 19. a state of matter that retains its shape
  12. 20. metal element
Down
  1. 2. theory - matter is composed of discrete units called atoms
  2. 4. a substance that cannot be broken down
  3. 7. property that comes from electromagnetic forces
  4. 8. a small part of matter
  5. 9. forces when a conductor is placed in a magnetic field and current flows in the conductor
  6. 10. property a property of matter that can be observed and measured without changing the property
  7. 12. a type of matter that fills the space its in
  8. 13. a neutral charged subatomic particle
  9. 14. property a particular substance that can be observed in a chemical reaction
  10. 16. mass the quantity of matter contained in an atom