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OUTDOOR THERMOMETERS Attach a thermometer outside a classroom window. Be sure it is shielded from direct sunlight. Why? I have observed that the newspaper gives us the daily temperature recorded in the shade, at the airport. I have learned that buildings and trees influence the air tempera- ture, just as sunlight does. If you want to have an accurate measurement of the general temperature of the air in your city, the shade at the airport is the place to measure it. Record the temperature twice each day by checking the thermometer at the same time each morning and each afternoon. Keep a record in a table. The information can be graphed to represent the general directions of temperature change throughout the week. Several interesting variations of this activity can be explored. Record the temperature every hour for one day to see how the temperature changes. Keep records for several months to note temperature changes during the year -- weekly or monthly averages can also be computed. You can also study contrasting temperatures in: 1) sun/shade, 2) wind/calm air, 3) surface soil/subsoil, 4) shallow water/deep water, 5) shallow snow/ deep snow, and so on. Here's a good idea: Record the temperature of a thermometer outdoors, then tie the thermometer to a large kite. Sail the kite as high as you can. In about 30 minutes, pull the kite down as quickly as you can, and record the temperature. Compare the two temperatures. If the temperatures differ, why do you suppose that is?  Any problems with this page? Send URL to
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