Sciene Weather Test 2 Study Guide Weather is what the air is like outside at any given time. Wind is moving air. A scientist who studies weather is called meterologist. A Rain Guague is used to measure Precipitation (rain, sleet, snow, hail). An Anemometer is used to measure speed of wind. A Wind Vane tells direction of wind. A Thermometer tells the temperature. Know how to read a thermometer – counting by 2’s. The Beaufort Wind Scale shows the Strength of Wind. The Seasons in order are: Winter, Spring, Summer, Fall. Be able to describe each season. Know the difference between a Weather WATCH and a Weather WARNING. What to do during a hurricane, tornado, and thunderstorm to stay safe.