Energy Transfer Crossword Puzzle

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Across
  1. 4. what a design must do to be successful
  2. 8. when two things reach the same temperature and energy stops moving between them
  3. 11. the energy something has because it is moving
  4. 12. what you measure to see the result of the change
  5. 13. a test where only one variable is changed so results are reliable
  6. 15. a tiny piece of matter that makes up everything
  7. 16. a material that slows down energy transfer and keeps heat in or out
  8. 19. the information you collect during an experiment
  9. 20. when energy is removed and particles move slower
  10. 22. how packed together particles are in a space
  11. 24. the data you use to support a claim or conclusion
  12. 25. when energy is added and particles move faster
  13. 27. energy transfer when particles touch and pass energy through collisions
  14. 29. when particles hit each other and pass energy between them
  15. 31. a first model used to test and improve a design
Down
  1. 1. the things that stay the same so the test is fair
  2. 2. how fast particles are moving inside a substance
  3. 3. energy transfer when warm fluid rises and cool fluid sinks, creating movement
  4. 5. the total amount of energy in all particles; more particles or higher temperature means more thermal energy
  5. 6. a planned solution to a problem
  6. 7. the object or area you are focusing on in an experiment or situation
  7. 9. when energy moves from a warmer place to a cooler place
  8. 10. when particles spread out from crowded areas to less crowded areas
  9. 14. how fast particles are moving; higher temperature means faster particle motion
  10. 17. the one thing you change on purpose in an experiment
  11. 18. a material that allows energy to move through it easily
  12. 21. a limit on a design such as cost time or materials
  13. 23. how easily a material allows heat energy to move through it
  14. 26. to decide how well something worked based on results
  15. 28. energy transfer through waves that can travel through empty space
  16. 30. energy that moves from a warmer object to a cooler object