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"I sent CoolStuff to a new teacher I'm
mentoring. I use CoolStuff all the time and love it. The kids love it and learn from it!"
~ Dixie D. from Texas
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Lab #22.4
Heat: Chapter 22
Canned Heat: Cooling Down
Purpose
In this experiment, you will
compare the ability of different
surfaces to radiate thermal
energy.
Discussion
Does the color of a surface make
a difference in how well it
radiates thermal energy? If so,
how? The answer to these
questions could help you decide
what color coffee pot will best
keep its heat and what color
might be used to radiate heat
away from a computer chip. In
this experiment, we will compare
the thermal radiation ability of
two surfaces: silver and black.
We’ll do this by filling cans
with these surfaces with hot
water, then letting the water
cool down. We’ll measure the
temperature of the water in both
cans while they’re cooling down
and see if there’s a difference
in the rate at which the
temperatures decrease.
Required
Equipment
Radiation Cans
(Silver and Black), Thermometer, Hot Water,
Paper Towel,
Graph Paper.
Download
Student Worksheet
Teacher Notes
Return to Lab Menu
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The "hot water" used in this experiment is just "tap water". The "paper
towels" required for this lab are any paper towels that you may already have.
The "graph paper" required for
this lab is readily available at
your office or school supply
store. Each lab would require
one sheet. |
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