This pamphlet offers information to teachers and students concerning basic facts about weather and how to construct simple weather measurement devices. Directions, necessary materials, procedures, and instructions for use are given for four weather predicting instruments: wind vane, rain gauge, barometer, anemometer. Information is provided on weather and radar, weather satellites and radiosonde instruments, weather signs, clouds, lightning, hurricanes, tornadoes, and air pollution. Photographs and drawings accompany the text. (SA)