Materials and their properties, Properties of solid, liquid and gas, Change of state, Physical and chemical changes

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Across
  1. 6. The process by which a substance changes from the solid phase to the liquid phase.
  2. 7. Process in which no new materials is formed and only the appearance of the material becomes different.
  3. 8. Substances that are harmful to the environment or our health.
  4. 11. Does not allow us to see through it.
  5. 13. Temperature at which a liquid changes into a gas.
  6. 15. a substance that is able to flow freely.
  7. 16. Can be broken down into its materials so that the materials can be made into new objects.
  8. 18. Materials that are no longer useful.
  9. 21. Change in which new materials are formed.
  10. 22. Ability of a material to be attracted to a magnet.
  11. 25. The process by which water vapor in the air is changed into liquid water.
  12. 26. Temperature at which a liquid changes into a solid.
  13. 27. Energy that causes things to become warmer.
  14. 28. Part of our surroundings.
Down
  1. 1. Silver-grey powder formed when some objects burn.
  2. 2. Water vapor forms when water boils at 100'C.
  3. 3. Factories where objects are made.
  4. 4. Poor conductors.
  5. 5. A substance from which something is made or can be made.
  6. 8. Process in which new materials are formed and energy is either given off or taken in and the new materials formed cannot be changed back to their original forms.
  7. 9. Having length, width, and height.
  8. 10. Liquid water changes to the gaseous state.
  9. 12. Evaporates rapidly.
  10. 14. Allows us to see through it.
  11. 17. The process that causes a substance to change from a liquid to a solid.
  12. 19. Can cause damage to the surface of a material.
  13. 20. a substance (such as Oxygen or Hydrogen) that is like air and has no fixed shape.
  14. 23. To produce a change in the material so the material becomes different.
  15. 24. The water changes to become steam.
  16. 25. a material or object that allows electricity or heat to move through it.