Lesson 4 Title: Transfer of Heat Energy

Students will explain the three methods of heat transfer, conduction, convection, and radiation. They will also cite common examples of each method and explain applications of heat transfer.

Physical Science Content Standard B: As a result of activities, students should develop an understanding of transfer of energy.

Lessons 1, 2, and 3 of the Heat Module.

1. Students will use internet and text references to determine the methods of heat transfer, examples, and applications of these methods. They will demonstrate knowledge of this information by means of a demonstration and oral explanation of a selected means of transfer.

2. Materials:
• student computer with internet access
• additional chemistry references
• poster board, colored pencils
• a variety of materials which students may request for demonstrations (hair dryer, balloons, metal and plastic spoons, iron, etc.)

3. Vocabulary:
a) conduction
b) conservation (of energy)
c) convection
d) vibration
e) radiation
f) waves
g) insulator
h) Vacuum

4. Resources:
a) Heat Conduction http://www.ens.utulsa.edu/~class_diaz/cs4533/flowheat/node2.html
b) Heat Energy http://linux.chs.edu.sg/~961f32/index.html
c) Heat Transfer http://air.llnl.gov/lessons/elementary/Weather/Localwinds/conduct.html
d) Heat Transfer http://www.hcc.hawaii.edu/hccinfo/instruct/div5/sci/sci122/newton/heat/heattrans.html#trans
e) Heat Energy Research http://www.compusmart.ab.ca/afairser/school/sc7.htm
f) Kerrod, Robin. Book of Science, Simon & Schuster, Inc., New York, 1990.
g) VanCleave, Janice Pratt. Physics for Every Kid, John Wiley & Sons, Inc., New York, 1991.
h) Billings, Charlene W., Superconductivity, Cobblehill Books, New York, 1991.
i) Morgan, Sally and Adrian. Using Energy, Evans Brothers Ltd., New York, 1993.

5. Students will research the methods of heat transfer from the resource list above.

6. They are to select one of the methods to demonstrate to the class.

7. They should provide an actual demonstration of the method of transfer and accompanying graphic displays to explain the manner in which heat is transferred.

8. Students should also provide the teacher with a predetermined number of questions about the heat transfer method demonstrated. These questions will be compiled by the teacher for a quiz about this topic.

9. The following Workforce Competencies will be stressed:
1) Information Manager
2) Effective Communicator
3) Resource Manager
4) Cooperative Workers

10. Classroom Management: Students should work in pairs or teams and may be permitted to select their transfer method to demonstrate or may have the topic assigned. This will allow for an equal distribution of each of the three methods.
One class period should be allotted for research, after which the students should provide the teacher with a list of necessary materials. It might be suggested that students utilize their own materials whenever possible. Another class period will be necessary for students to set up demonstrations and prepare the oral presentation. The subsequent class period would be for the actual demonstrations. The quiz should be announced for a later date.

The previously mentioned questions will be used for assessment in the form of a student-constructed quiz, with the questions concerning each demonstration being compiled into an appropriate quiz by the instructor.

Cross-Curricular
Social Studies: Using a map of the world, show major climatic factors that involve convection.

Art: Draw a cartoon about one of the methods of heat transfer.

Enrichment:
Research the development of teflon (the substance that is found in some pots and
pans.

Design a floor plan for a house that would capitalize on the principle of heat
exchange and convection currents for energy efficiency.

Materials:
• student computer with internet access
• additional chemistry references
• poster board, colored pencils
• a variety of materials which students may request for demonstrations (hair dryer, balloons, metal and plastic spoons, iron, etc.)