Physical Science Vocab 2

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Across
  1. 1. anything about a substance that can be observed or measured without altering the substance´s chemical composition
  2. 4. solid frost formed directly from a vapor
  3. 8. a mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid
  4. 9. change in matter that does alter the chemical composition of a substance
  5. 10. the temperature of which a solid turns to a liquid
  6. 14. a pure substance consisting of atoms of two or more different elements that are chemically combined
  7. 15. the state of matter in which particles are far apart, move rapidly, and have little interaction with eachother
  8. 18. the measure of gravity acting on the matter in an object
  9. 19. the law that states that the masses of chemical substances combine in definite, characteristics integer ratios when forming compounds
  10. 21. the change of state from a liquid to a vapor
  11. 24. a gas-like state of matter, formed at very high tempatures, that consist of high-energy ions and free electrons
  12. 25. the relatively fast form of vaporization
  13. 26. states all physical matter exists in the form of particles in constant motion
  14. 28. states that matter can neither be created nor destroyed, but can only change forms
  15. 30. the amount of matter in an object
  16. 32. the state of matter in which particles are close together but able to move around
Down
  1. 2. a mixture that does not have a uniform appearance since the combined substances are unevenly distributed
  2. 3. the change of state from a liquid to a solid
  3. 5. when a solid goes directly to a vapor without melting first
  4. 6. the temperature at which the liquid starts to boil
  5. 7. a pure substance that consists of atoms with the same atomic number
  6. 11. the relatively slow form of vaporization in which particles on the surface of the liquid state obtain sufficient energy to change to the gaseous state through the random collisions of particles
  7. 12. a material made of only one kind of element or compound; it is not a mixture
  8. 13. the change of state from solid to liquid
  9. 16. describes how a substance changes in the presence of another substance or under certain conditions
  10. 17. a physical combination of two or more substances in a changeable ratio
  11. 20. change in matter that does not alter the composition of a substance
  12. 21. the space enclosed or occupied by an object
  13. 22. the change of states from a vapor to a liquid
  14. 23. anything that occupies space and has mass
  15. 27. the mass of matter contained within a particular volume
  16. 29. building block of all matter
  17. 31. the state of matter in which particles vibrate in fixed positions, giving a substance a fixed shape and volume