Giving heat out….
This is a heat picture called a thermogram. It was taken using a
special camera which detects heat rays.
The thermogram shows someone drinking out of
mug. (you can see a normal photograph of the person above) The colours on the
thermogram show how much heat is being given out. Use the colour code, and the
thermogram, to answer the questions.
1. Which
part of the person gives out: a) most heat.
b)least heat?
2. Why
do some parts of the person lose more heat than others?
3. Which
gives out more heat, the person’s head or arms?
4. Is
it a hot or cold drink?
Explain your answer
…and taking heat
in.
Some surfaces
absorb heat better than others. The diagrams on the right show that. They show
what happens to heat from the sun, when it strikes different surfaces.
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