Thermal / Heat Energy

1. Thermal / Heat Energy Conduction, Convection, and Radiation

2. What is Thermal / Heat Energy?

3. Do really cold things like ice have thermal/ heat energy? Write yes or no on your white boards

4. Bill Nye Video http://www.youtube.com/watch?v=f1eAOygDP5s

5. More Molecules = More Thermal/ Heat Energy • Which one has more Thermal/ Heat energy? Write in Your Foldable OR

6. WHY?

7. Heat can be transferred by 3 different ways. What are they? • Conduction • Convection • Radiation

8. Learning Goal Conduction

9. Conduction is the transfer of heat energy when molecules touch other molecules • Molecules are always moving • Heat causes them to move faster • When a heated molecule bumps into a non-heated molecule, the non- heated molecule becomes heated. Add This to Your Foldable

10. The heat was transferred from the heated molecule to the non- heated molecule • Heat flows from warmer to cooler • Thus, the non-heated molecule moves faster and becomes heated Add This to Your Foldable

11. 36 sec to 2 mins

12. Activity 6Turn to page 14 in your student journals

13. Alternative Activity 6

14. Does conduction only occur with solids? Write your response on the white boards

15. Ice Water Experiment

16. Conduction is the transfer of heat energy through molecules • Conduction can occur in solid, liquids, or gases

17. Placing a skillet on a hot stove • Licking ice cream • Dropping a marshmallow into hot chocolate • An ice cube in a glass of water • Steam from corn on the cob • Pouring milk into coffee What is the heat GOING into?

18. http://gtm-media.discoveryeducation.com/videos/dsc/externalapplications/accessible/simulations-es/Explorations/Content/Resources/PS_4_2_3_Heat_Transfer/flash/PS_4_2_3_Heat_Transfer.htmlhttp://gtm-media.discoveryeducation.com/videos/dsc/externalapplications/accessible/simulations-es/Explorations/Content/Resources/PS_4_2_3_Heat_Transfer/flash/PS_4_2_3_Heat_Transfer.html Review

19. 4- I can teach conduction to 8th graders • 3- I understand conduction and could get an A on the next quiz • 2- I understand conduction but I need more examples • 1- I’m starting to understanding conduction • 0- I don’t understand conduction at all How you do feel about conduction?

20. Learning Goal Convection

21. Convection is the transfer of heat energy through liquids and gases • It occurs in a circular motion • When heat is added to fluids, it become less dense (less heavy) • This causes it to rise • As the fluids travel away from the heat source, it starts to cool down Add This to Your Foldable

22. It becomes more dense (more heavy) • The dense fluids begins to sink lower • When it gets closer to the heat source, the fluids start to heat up • When heat is added to fluids, the molecules become less dense (less heavy) • The cycle starts again Add This to Your Foldable

23. Draw Me in Your Foldable

24. Convection Experiment

25. http://www.teachertube.com/viewVideo.php?video_id=160336&title=Convectionhttp://www.teachertube.com/viewVideo.php?video_id=160336&title=Convection Alternative Convection Experiment

26. The center of the Earth is very hot. Explain the convection currents in this picture

27. Story Time With Ms. Weston

31. Was Goldilocks telling the truth?

32. Turn to page 18 in your Student Journals

33. What is the variable that changes? • Should we use the same amount of oatmeal? • What should we measure the Temperature in? Goldilocks Experiment

34. Why was the large bowl too cold and the small bowl too hot? (think about conduction and convection) Was Goldilocks telling the Truth?

35. Conclusion

36. 4- I can teach convection to 8th graders • 3- I understand convection and could get an A on the next quiz • 2- I understand convection but I need more examples • 1- I’m starting to understanding convection • 0- I don’t understand convection at all How you do feel about convection?

37. Learning Goal Radiation

39. Radiation, Conduction, Convection