1. Heat Transfer

2. You can not transfer cold or give someone cold!
Heat Transfer
Is the transfer of thermal energy from a hotter object to a cooler one until both objects are the same temperature.
You can not transfer cold or give someone cold!

3. 3 ways that heat is transferred within the atmosphere
Radiation
Conduction
Convection

4. Be prepared to share definitions!
Heat Transfer cards
Part I: Read each example of heat transfer, looking for patterns. Create three different groups of the three different ways to transfer heat. Make a group definition for each type of heat transfer.
Be prepared to share definitions!

5. The first method of heat transfer
How does heat energy get from the Sun to the Earth?
RADIATION ?

6. Radiation
The direct transfer of energy by infrared electromagnetic Waves.
Sun, fire, light bulbs

8. Pair Share Partner A: What is radiation and where does it come from.
Partner B: What are three different things that create electromagnetic radiation?

9. Conduction
The direct transfer of heat from one substance to another substance that is touching.
Objects have to touch!!!
Ironing Clothes
Stepping on hot sand.
That’s Hot

10. Conduction
When you heat a metal strip at one end, the heat travels to the other end.
As you heat the metal, the particles vibrate, these vibrations make the adjacent particles vibrate, and so on and so on, the vibrations are passed along the metal and so is the heat. We call this?

11. Example of Conduction

12. Pair Share:
Partner A: Using the picture on the right explain the conduction process
Pair Share:
Partner B: Explain how the picture on the left is conducting heat.

13. The transfer of heat by movement of a fluid (liquids and gases).
Convection
The transfer of heat by movement of a fluid (liquids and gases).
Cooking peas in water
Blow Drying your Hair.
Dryer
OVEN

16. Conduction, Convection and Radiation

18. Heat Transfer cards
Part II: recheck your heat transfer piles then write the actual definition and three examples for each.

19. A space heater heating the air in the room.
Convection

20. The sun heating your skin on a warm summer day.
Radiation

21. A metal spoon gets hot when you stir your hot chocolate.
Conduction

22. Warming yourself by the fireplace.
Radiation

23. How a hot-air balloon works
Convection

24. Oven that has a fan in it to circulate the heat
Convection

25. How it’s hotter upstairs than it is down stairs when you have the heater on.
Convection

26. Cooking marshmallows on a campfire
Radiation and
Convection

27. How you have to be careful touching the end of a metal pot.
Conduction

28. Cooking spaghetti in boiling water.
Convection

29. Warmth you can feel when you put your hand near a turned on light bulb.
Radiation

30. Warming yourself with a heating blanket
Conduction

31. Type of heat transfer that heats a greenhouse.
Radiation

32. Drying your clothes in a dryer.
Convection

33. A hot pot on the stove.
Conduction

34. When your hands get warm from holding a hot mug.
Conduction

35. Heating the Troposphere
Radiation, conduction and convection work together to heat the troposphere.
Radiation- heats the Earth
Conduction- Air near earth’s surface is warmed
Convection- the warm air molecules rise and transfer heat to the cooler air molecules. Eventually these molecules cool and sink back down to earth. This creates Convection Currents.

36. Radiation, Convection and Conduction work together to heat the troposphere.
review of all 3 types
Radiation
Convection Current
Conduction

37. Review
Heat transfer from a hotter object to a cooler object until both objects are the same temperature.
3 types of heat transfer review3 types of heat transfer review, review 2
Music Review
Radiation – electromagnetic waves
Conduction – touching
Convection- through a fluid (liquid or gas)
All 3 work together to heat the troposphere but Convection causes most of the heating.