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Activity (Hands-On)Grades 8 - 10

Efficiency of a Water Heating System

Materials List

Each group needs:

  • electric water-heating device (such as a hot plate, hot pot, microwave; it is best to have different appliances among the groups)
  • thermometer
  • graduated cylinder (100 or 500 ml)
  • stopwatch
  • watt meter (can be shared among groups to some extent)
  • insulated pot holder
  • Student Worksheet (PDF), one per student