Thermal Energy

1. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • DO NOW: • Tape in “Vocabulary for Quiz 13”onto the next open page of your composition book. • Read and answer the “Warming Water” handout. • Tape in the “Warming Water” handout onto the next open page of your comp. book.

2. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 Effect of Heat on Atoms :

3. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Reminders • Tutorials: • Tuesday after school • Vocabulary Quiz on Friday :

4. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • 1. Log onto your computer • Username: S(Student Id #) • Password:First letter of your • last name Birthdate s • 2. www.ohenryscience6.weebly.com • 3. Click on the handouts tab • 4. Open Week 13 PPT • 5. Use the PPT to fill out the vocabulary foldable :

5. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Heat moves from warmer matter to cooler matter. • warmer cooler • Heat moves in 3 different ways: • 1. Conduction • 2. Convection • 3. Radiation :

6. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Conduction • The transfer of heat through a material by direct contact. • Examples:1. A metal spoon gets hot quickly in hot cocoa. • 2. An iron heats up the material it comes in contact with. • List one more example on your foldable. :

7. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Convection • The transfer of heat in a fluid (gas or liquid) as a result of the movement of the fluid itself. : Note that the warm material rises, cools at the surface and then sinks in a circular pattern.

8. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Convection • Examples: • Pot of boiling water • Ocean currents • List one more example of your foldable. • Animations of conduction and convection: • Teacher's Domain Animations :

9. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Radiation • The transfer of heat via electromagnetic waves through space. • Examples: • The heat from the sun melting ice cream. • The heat from a campfire. • List one more example on your foldable :

10. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 • Tape in the vocabulary foldable on the next open page of your comp. book. • Go to the following website: http://austinisd.stemscopes.com/login • Log in information: • Username: science6 • Password: science6 • 3. Play either game as a review of what you • just learned. :

11. Name:_________________________________ Period:_________________ Exit Ticket B. A. A:___________________ B:___________________ C:___________________ C. What is the difference between hot and cold water in terms of K.E.? ___________________________________________________________ ___________________________________________________________

12. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 Review Why do we get sunburn? Radiation :

13. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 Review How does heat move through a pot of boiling water and make all the water boil? Convection :

14. Ms. Smith Mrs. Malone Thermal Energy November 14, 2011 Review The roof of your mouth gets burned with hot pizza? Conduction :

15. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 DO NOW: On the next open page of your journal explain why a chocolate bar melts in your hand. Try to use at least one of your new vocabulary terms in your science journal in your explanation. Don't forget to use labels if you draw a diagram. 

16. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 • Reminders • Tutorials: • Tuesday after school • Vocabulary Quiz on Friday :

17. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 • Heat moves from warmer matter to cooler matter. • warmer cooler :

18. Ms. Smith Mrs. Malone Thermal Energy Block Day DO NOW: Pick up the handout and one pair of goggles. In your composition book list at least one example of conduction, convection, and radiation.

19. Ms. Smith Mrs. Malone Thermal Energy Block Day Review Why do we get sunburn? Radiation :

20. Ms. Smith Mrs. Malone Thermal Energy Block Day Review How does heat move through a pot of boiling water and make all the water boil? Convection :

21. Ms. Smith Mrs. Malone Thermal Energy Block Day Review The roof of your mouth gets burned with hot pizza? Conduction :

22. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Breath on a Cold Day: As the organism exhales, water vapor in the breath comes in contact with colder air. This causes water vapor to condense into water droplets which we can see suspended in the air. The heat from the organism’s breath warms up the surrounding cooler air. The movement of matter facilitates the transference of heat, so transfer is by convection.

23. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Steaming Hot Coffee: The hot coffee is at a higher temperature than the surrounding air and mug. Heat is transferred from the coffee to the mug/cooler air above the coffee and we see the water droplets condense by convection.

24. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Hot Soup with Metal Spoon: The hot soup is at a higher temperature than the metal spoon. The metal spoon is hot from energy transferred through contact by conduction.

25. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Ice Cream Melting in the Sun: Higher heat from the sun is transferred to the lower heated ice cream causing the ice cream to melt. The heat source is not directly touching the object it is warming up. (radiation).

26. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Heat Lamp: The heat from the lamp warms the air molecules by radiation. :

27. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Hot Spring Geyser:Hot springs are geothermal heated groundwater. Cooler water seeps into the ground and comes in contact with hot rocks associated with magma chambers below the Earth’s surface (conduction). As water is heated to above boiling point, it remains in liquid form due to intense pressure, but is much less dense, bringing it to the surface. (convection) :

28. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Boiling Water:The pot becomes hot from touching the heat source (conduction), the water at the bottom of the pot gets warm first, and moves upward since it becomes less dense. This pushes the cooler water at the top down, creating a convection current.

29. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Woodstove:Heat is transferred in two ways. Firelight transfers heat by radiation, the woodstove becomes hot due to conduction from the fire toughing the metal. The air inside the stove gets hot, rising and falling in a convection current. If you place an object on top of the stove, you have another example of conduction. :

30. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Mirage: Heat from the sun warms the black asphalt (radiation). The air directly above the asphalt becomes hotter, drastically changing the density levels of air near the ground. A wavy and often duplicate image appears because light bends when it passes from one medium to another (in this case: warmer air to cooler air). :

31. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Cooking in the Oven: Heat is transferred in an oven primarily through convection and by radiation (from heat being emitted from the hot walls. Convection ovens are different from conventional ovens in that they forcefully circulate the air.

32. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Toasting Marshmallows: The marshmallows are toasted by radiation.

33. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Ironing: The metal iron uses conduction to warm objects it comes in contact with.

34. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Toaster: The toaster uses radiation from the coils to toast the bread.

35. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Baking Cookies: The cookie sheet uses conduction to transfer heat. Inside the oven, radiation also allows the cookies to cook.

36. Ms. Smith Mrs. Malone Thermal Energy November 15, 2011 Microwave Oven: The microwave uses radiation to cook food.

37. Ms. Smith Mrs. Malone Thermal Energy November 18, 2011 DO NOW: Complete the “CAQ Concept Attainment Do Now” Set-up two privacy folders for today’s quiz.