3rd Quarter Alternative Assessment

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Across
  1. 2. A physical property that will be the same regardless of the amount of matter.
  2. 4. The atoms that collide randomly with one another and can fill any container.
  3. 8. True or False: Leading zeros are significant.
  4. 10. At
  5. 13. Studies carbon-based substances.
  6. 17. Are the standards of comparison for measurements.
  7. 18. any zero that appears to the right of both the decimal point and every digit other than zero.
  8. 20. How many significant figures are in 000.97?
  9. 25. Au
  10. 26. Process of converting certain elements into others.
  11. 28. Na
  12. 30. a mixture that is relatively uniform in composition.
  13. 32. Electrons in the last electron shell.
  14. 33. Group 7A (or VIIA) of the periodic table.
  15. 35. True or False: All non-zero numbers ARE significant.
  16. 36. Change in the chemical composition of a substance.
  17. 37. How many significant figures are in 3.25?
  18. 38. Who discovered electrons?
  19. 39. How many significant figures are in 1395.00?
  20. 41. Charged atom or molecule.
  21. 43. separation of a mixture through a medium in which the components move at different rates.
  22. 44. The standard unit of mass in the SI system.
  23. 45. Can hold its own shape and is hard to compress.
  24. 46. Co
  25. 48. Negatively charged subatomic particle.
  26. 49. Combination of proton and neutron.
  27. 50. Composed of two or more kind of atom.
Down
  1. 1. Zeros attached to the beginning of a number.
  2. 3. Sn
  3. 5. The digits that carry meaning in a number and contribute to its precision.
  4. 6. An educated guess.
  5. 7. True or False: When the milk turns sour it is a physical change.
  6. 9. Solid to Gas.
  7. 11. Type of heterogeneous mixture where the particles must not dissolve in the fluid.
  8. 12. Result of combining two or more substances.
  9. 14. Kr
  10. 15. How many significant figures are in 20253?
  11. 16. A separation method that separates solids of different sizes.
  12. 19. An effective method to separate mixtures comprised of two or more pure liquids.
  13. 21. The study of matter and its properties.
  14. 22. A pure substance that is made from a single type of atom.
  15. 23. The study of chemicals found in living things.
  16. 24. Everything that takes up space and has mass.
  17. 27. True or False: Dicing potatoes is a physical change.
  18. 29. A positively charged ion.
  19. 31. This separation method drives off the liquid components from the solid components.
  20. 34. Pb
  21. 40. 4th state of matter.
  22. 42. The properties can be observed or measured without changing the composition of matter.
  23. 45. the substance that is dissolved in a solution.
  24. 47. Basic unit of matter.