Matter

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Across
  1. 3. process of being worn by the exposure to the atmosphere or forces of nature
  2. 6. substance made of atoms that are all alike
  3. 8. a process when a material must be heated before burning
  4. 10. chemical reaction between silver metal and sulfur compounds in air causing metals to darken and lose their luster
  5. 13. matter composed of 2 or more substances that can be separated by physical means
  6. 15. temperature when pressure of vapor in liquid is equal to external pressure acting on surface of liquid
  7. 17. heterogeneous mixture made of liquid and solid particle that settle
  8. 18. substance when 2 or more elements chemically combine in a fixed proportion
  9. 20. heterogeneous mixture made of water, fats, and proteins with particles that don’t settle
  10. 23. type of matter with a fixed composition
  11. 24. tendency of a substance to burn without reaching a specific temperature
  12. 29. chemical reaction between iron, oxygen, and moisture resulting in iron oxide
  13. 30. amount of energy required of liquid at its boiling point to become a gas
  14. 31. temperature when a solid becomes a liquid
  15. 32. mixture that remains constantly and uniformly mixed with particles that cannot be seen with microscope
  16. 33. change of one substance to another substance
  17. 34. any characteristic of a material that you can observe without changing the identity of the substance
  18. 35. process of a liquid becoming a gas
  19. 36. force arising between electrically charged particles because of their motion
Down
  1. 1. process of a gas becoming a liquid
  2. 2. spontaneously emitting energy particles by disintegration of their atomic nucleus
  3. 4. process of a liquid becoming a gas that occurs throughout the liquid
  4. 5. energy required to change a substance from solid to liquid at its melting point
  5. 7. another name for a homogeneous mixture
  6. 9. any characteristic of a material that can be observed that produces one or more new substances
  7. 11. mixture when different components remain distinct
  8. 12. a change is size, shape, or state of matter while identity of substance remains the same
  9. 14. how easily a substance reacts with oxygen
  10. 16. a measure of how well a solute dissolves in a solvent
  11. 19. process of a liquid becoming a gas that occurs at surface of liquid
  12. 21. process of a solid changing directly to gas
  13. 22. how easily a substance will react, usually with an acid or base
  14. 25. process of separating substances in a mixture by evaporating a liquid and recondensing its vapor
  15. 26. temperature when liquid turns into a solid
  16. 27. a fluid’s resistance to flow
  17. 28. process of breaking down a substance