Physical Science vocabluary 2

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Across
  1. 2. The change of state from a liquid to a gas
  2. 4. anything about a substance that can be observed or measured without altering its chemical composition
  3. 6. a mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in liquid
  4. 7. anything that has mass and occupies space
  5. 8. A gas-like state of matter, formed at a very high temperature, that consists of high energy ions and free electrons
  6. 9. The space enclosed or occupied by an object
  7. 10. A measure of the amount of matter in an object
  8. 14. the state of matter in which particles are close together but able to move around
  9. 15. the relatively fast form of vaporization in which the energy within a liquid creates higher pressure within the liquid than the air pressure outside the liquid
  10. 18. the temperature at which a liquid starts to boil
  11. 19. the change in state from a solid to a liquid
  12. 21. a mixture that does not have a uniform appearance since the combined substances are unevenly
  13. 22. The change of state from a gas to a liquid
  14. 24. the state of matter in which particles are far apart, move rapidly, and have little interaction with each other
  15. 26. A change that alters the chemical composition of a substance
  16. 27. a physical combination of two or more substances in a changeable ratio
  17. 31. the force of gravity acting on the matter in an object
  18. 32. The law that states that matter can be neither be created nor destroyed, but can only change form
  19. 33. the change of state directly from a solid to a gas without melting first
Down
  1. 1. the law that states that the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds
  2. 3. The relatively slow form of vaporization in which liquid particles obtain sufficient energy to change to a gaseous state though the random collisions of particles
  3. 5. a model that states that all physical matter exists in the form of particles
  4. 8. a material made of only one kind of element or compound
  5. 11. that state of matter in which particles vibrate in a fixed position. giving a substance a fixed shape and volume
  6. 12. The temperature at which a solid turns to a liquid
  7. 13. any change in matter that does not alter its chemical or nuclear composition
  8. 16. the change of state from a liquid to a solid
  9. 17. a pure substance consisting of atoms of two or more elements that are chemically combined in a fixed ratio
  10. 20. a property of a substance that describes how how its chemical identity changes in the presence of another substance or under certain conditions
  11. 23. The building block of all matter; consists of protons, electrons, and (usually) neutrons
  12. 25. the change of state directly from a gas to a solid without condensing first
  13. 28. The mass per unit volume of an object
  14. 29. a particle consisting of two or more atoms covalently bonded together
  15. 30. a pure substance that consists of atoms with the same atomic number