Split the class into two teams. One team will observe a beaker filled with water, another team will observe
a beaker filled with sand. Each team goes to their respective set up station where there will be the following
materials:
1 hot plate
1 thermometer
1 hot glove
1 stopwatch
1 beaker of water or sand (approx. 50-60 mL depending on which beaker you have)
The teams will first record the mass of each material, then heat up their respective materials.
Two students on each team should read the temperature off the thermometers. Each team should designate
a stopwatch person who will tell the "readers" to read off the temperatures every 30 sec. for 10 minutes
(or up to a certain temperature, say 50 degrees C depending on time). All students should be recording the
data in their notebooks. After heating up their respective materials, students will then turn off hot plates
and measure for every 30 sec the cooling rate of their material and record data in their notebooks.
At the end of class, the teams should compare their notes and observe which material was able to transfer heat
the quickest and which material was able to store heat the longest. Each student should graph their results in order
to see for themselves their results.
|