WEATHER TOOLS WHAT ARE THEY? WHAT DO THEY DO?

DIRECTIONS 1. Glue the weather instrument sheet into your notebook. DO NOT GLUE IN THE SHEET WITH ALL THE PICTURES 2. Go through the slides to find out what each weather instrument is used for. 3. As you go through the slides, fill in the information for each instrument and cut/paste the correct picture onto your sheet that matches the correct instrument 4. Watch the weather instrument video and take the quiz using the link on slide Work on your weather study guide or the weather review puzzle. The puzzle does not get glued in your notebook.

THE MOST COMMON WEATHER TOOLS ARE: Thermometer Wind Vane Anemometer Barometer Rain Gauge

THERMOMETER A thermometer is a weather tool used to measure the temperature. Most thermometers are closed glass tubes containing liquids such as alcohol or mercury. When air around the tube heats the liquid, the liquid expands and moves up the tube. A scale then shows what the actual temperature is.

WEATHER BALLOON Weather balloons are sent into the atmosphere to gather information about air pressure, temperature, humidity and wind speed at higher altitudes.

WIND VANE By observing wind vanes, we can know the direction of the wind. Knowing the direction of the wind is an important part in predicting the weather.

ANEMOMETER Wind speed is an important part of weather. An anemometer is a weather tool that measures wind speed. The cups catch the wind, turning a dial attached to the instrument. The dial shows the wind speed.

BAROMETER Barometers are important to measuring air pressure. Air pressure can help you predict good or bad weather. A rising barometer means sunny and dry conditions, while a falling barometer means stormy and wet conditions. An Italian scientist named Torricelli built the first barometer in 1643.

WIND SOCK These are used to measure wind direction and relative speed (but not exact speed). They are used a lot at airports and chemical plants.

RAIN GAUGE A rain gauge is a weather tool used to collect rain. Using measurements on the side of the rain gauge, you can see how many inches it rained.

HYGROMETER A hygrometer measures how much moisture is in the air (humidity).

VIDEO Go to this website. climate/weather-instruments.htm climate/weather-instruments.htm Watch the video AND test yourself! How did you do?