science vocab 2

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Across
  1. 3. Temperature that liquid turns to vapor
  2. 6. Carries electricity, mostly found in space
  3. 7. A chemical reaction that absorbs heat: endo= inside; therm= heat
  4. 11. The material is structurally the same before and after the change.
  5. 14. Smallest unit of matter
  6. 17. A measure of how easily a substance bursts into flame.
  7. 20. Amount of space a substance takes up.
  8. 21. Anything that takes up space and can be weighed.
  9. 24. Solid, liquid, gas, change to one form and another.
  10. 26. A chemical reaction that releases heat: exo= outside; therm= heat
  11. 27. The level of acid in substances (0-6 pH)
  12. 28. Physical quantity of hot or cold measured with a thermometer.
  13. 29. Maximum amount of a solute that can dissolve in a solvent at a given temperature
  14. 30. Loosely packed, slide past each other, take the shape of a container.
  15. 31. A characteristic of matter that can be observed and measured without changing: change in state, solubility, density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature, conductivity
Down
  1. 1. Metal can be beaten into a sheet
  2. 2. Matter cannot be created or destroyed, it can only change forms.
  3. 4. Partly reflective surface
  4. 5. A measure of how quickly a specific material is capable of catching fire and burning.
  5. 8. Mass divided by volume
  6. 9. The characteristic ability of a substance to react to form a new substance: acidic, basic, combustibility, reactive, flammable
  7. 10. The ability of a substance to interact chemically with a second substance.
  8. 12. Closely packed, vibrate in space, hold their shape.
  9. 13. Widely spaces, bounce around, compressible
  10. 15. A substance made by mixing other substances together that can be physically separated.
  11. 16. A change of materials into another, new material with different properties. This cannot be reversed.
  12. 18. Temperature that solid turns to liquid
  13. 19. Amount of matter in a substance.
  14. 22. The easure of its ability to accept a proton to form a stable product (7-14)
  15. 23. Measure of the ability of water to pass an electric current.
  16. 25. Matter that consists of one type of atom, molecule, or compound