UEN Security Office
Technical Services Support Center (TSSC)
Eccles Broadcast Center
101 Wasatch Drive
Salt Lake City, UT 84112
(801) 585-6105 (fax)
Main Curriculum Tie:
Background For Teachers:
Student Prior Knowledge:
Intended Learning Outcomes:
Step 2. Start the observations in the classroom. As the students observe, remind them to remember simple machines as well as others. For example mechanical machines could include: scissors, pencil sharpener, stapler, paper punch, flag pole, lunch tables being set up, etc. Electrical machines are items such as computer, projector, television, electrical pencil sharpener, laminator, overhead projector, copier, etc.
Step 3. Return to the classroom and get into small groups. Have each group decide on three mechanical and three electrical machines that they can use for their investigation.
Step 4. Predict what the temperature will be for each machine and record. Then using the thermometers, return to the machines on their list and take the temperature of each machine and graph the results. (Remind students they will need to ask permission to access some of their choices,e.g. laminator, copier. They might also need to be reminded about the importance of electrical safety.)
Step 5. When students return, have them graph their results by temperature. Compare the results of the various groups. Were the predications correct? Some questions that might be discussed:
Step 6. Return to small groups, take a large piece of paper, and fold in half. Create a chart labeled "mechanical" and "electrical" machines. Use the magazines and catalogues to find machines and then paste or glue on the correct side of the chart. They should find at least six different machines for each side.
Step 7. Display charts in the room and share.
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