The Aneroid Barometer
Explains what this instrument is, who invented it, and how it works. Includes a guide to reading, adjusting, and using the barometer.
http://www.bom.gov.au/info/aneroid/aneroid.shtml
Homemade Easter Egg Anemometer
Describes in words and pictures how they build an anemometer.
http://www.otherpower.com/anemometer.html
Weather Instruments
Learn about the instruments scientists use to predict the weather.
http://www.weatherwizkids.com/wxinstruments.htm
How Does the Thermometer Work?
Answers the question of how thermometers can tell us the temperature.
http://www.energyquest.ca.gov/how_it_works/thermometer.html