Students will learn an easy technique to measure the presence of drafts in their homes and classrooms.
Instructions for Students
1)Cut a 12cm by 25cm strip of plastic wrap.
2)Tape the shorter edge of the wrap to a pencil and let the rest hang freely.
3)Blow plastic wrap gently and note how sensitive the wrap is to air movement. Drafts mean that air is leaking into or out of a building. This means either a loss of heat in winter or a loss of air conditioning in summer.
4)Complete the "Home Draft Checklist" on page 3 of the attached lesson plan to assess where drafts are in your home.
-Handout (located inside the attached lesson plan) -Pencil -Tape -Plastic food wrap
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