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