Review Semester 1

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Across
  1. 2. An attitude where one asks many questions
  2. 3. a sub-atomic particle without a charge
  3. 9. bending of light rays
  4. 12. color that absorb light rays
  5. 14. building blocks of all matter
  6. 15. light rays in a spot light
  7. 17. temperature at which liquid changes to solid
  8. 20. splitting of white light
  9. 25. bouncing of light rays
  10. 26. Used for evaporation
  11. 27. Only for observing and mixing chemicals but not measuring
  12. 28. positively charged sub-atomic particle
  13. 31. negatively charged sub-atomic particle
  14. 33. Evaluates and answers the problem
  15. 34. Only for measuring liquids
  16. 35. sum of the number of protons and neutrons in an atom
Down
  1. 1. An educated or scientific guess
  2. 4. enables matter to be bent without breaking
  3. 5. can be solved by dividing mass and volume
  4. 6. temperature at which liquid changes to gas
  5. 7. an atom that has no charge
  6. 8. Used to measure liquids, heating and mixing chemicals
  7. 10. temperature at which solid changes to liquid
  8. 11. A means to verify the hypothesis
  9. 13. space occupied by matter
  10. 16. Used for filtration
  11. 18. light rays in a lens
  12. 19. light rays in a light house
  13. 21. materials that allow heat and electricity to pass through
  14. 22. property of a material to resist scratch
  15. 23. amount of matter in an object
  16. 24. made upn of two or more atoms chemically combined
  17. 29. Accepts suggestions and criticisms
  18. 30. materials that does not allow heat and electricity to pass through
  19. 32. refers to the number of protons in an atom