Year 8 Energy and heat

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Across
  1. 4. State of matter with particles moving freely and no fixed volume
  2. 5. State of matter where particles slide over one another
  3. 9. Energy an object has when moving
  4. 11. When energy changes from one form to another
  5. 13. Material that slows the transfer of heat or electricity
  6. 14. Stored energy in stretched or compressed objects
  7. 19. Heat transfer through direct contact between particles
  8. 20. Percentage of input energy converted into useful energy
  9. 21. Heat transfer by electromagnetic waves without particles
  10. 23. Form of energy we can see with our eyes
  11. 25. Visual representation of energy movement or changes
  12. 27. State of matter with fixed shape and tightly packed particles
  13. 29. Energy carried by moving charges through wires
Down
  1. 1. Scientific law stating energy cannot be created or destroyed
  2. 2. Energy produced by vibrations travelling through matter
  3. 3. Energy produced after a transfer or transformation
  4. 4. Stored energy due to height above the ground
  5. 6. Energy that helps achieve the intended purpose
  6. 7. Appliance that transforms electrical energy into heat
  7. 8. Tiny pieces of matter that move faster when heated
  8. 10. Heat transfer in liquids and gases through particle movement
  9. 12. Movement of energy from one object to another without changing form
  10. 15. The ability to cause change
  11. 16. Energy stored in the nucleus of an atom
  12. 17. Type of electromagnetic wave responsible for thermal radiation
  13. 18. Unit used to measure energy
  14. 22. Stored energy found in food, fuel, and batteries
  15. 24. Energy not used for the intended purpose, often heat or sound
  16. 26. Starting energy in an energy flow diagram
  17. 28. Energy transferred due to temperature differences