Science

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Across
  1. 2. No definite shape or volume, expands to fill space
  2. 8. The ability to float in a fluid
  3. 10. A state of matter found in stars and lightning
  4. 12. Gas turning into liquid
  5. 13. A slow chemical reaction between metal and oxygen
  6. 14. The increase in size of a material when heated
  7. 16. Materials that resist the flow of heat or electricity
  8. 18. The decrease in volume due to applied pressure
  9. 20. The attraction between different substances
  10. 21. A chemical reaction that dulls the surface of some metals
  11. 24. Solid turning into liquid
  12. 25. A state of matter at extremely low temperatures
  13. 29. Materials that allow heat or electricity to pass through
  14. 30. Solid turning directly into gas
Down
  1. 1. A change that creates a new substance
  2. 3. Gas turning directly into solid
  3. 4. Process where a liquid turns into gas
  4. 5. Takes the shape of its container but has a fixed volume
  5. 6. Liquid turning into solid
  6. 7. A material’s resistance to being scratched
  7. 9. The gradual destruction of materials due to chemical reactions
  8. 11. The amount of space an object takes up
  9. 15. The attraction between molecules of the same substance
  10. 17. Has a definite shape and volume
  11. 19. A solid that forms from a chemical reaction in a solution
  12. 22. The substance that dissolves another in a solution
  13. 23. A change that does not alter the chemical composition
  14. 26. The substance being dissolved in a solution
  15. 27. Mass per unit volume
  16. 28. The amount of matter in an object