Optional: To create a base for your anemometer, fill the empty water bottle or cup with a weight and place the center dowel into the middle of your container.Spin the pin and pencil a few times to make sure it can move easily. Use scissors or a sharp pencil to carefully punch a hole through the bottom of the center cup and push the eraser end of the pencil through the bottom of the cup until it meets the “X.” Push the pin through the center of the “X” into the eraser this is the rotation axis.Try to make the cups evenly spaced out from the center cup. Use tape to securely attach the other 4 cups to the ends of the straws, ensuring that all the cups are pointing in the right direction.Insert your two straws into the holes of the center cup to make an “X” shape.This will be the center of your anemometer. Use a hole punch or scissors to make 4 evenly spaced holes into the 5th cup (about ¼ inch below the rim of the cup).Use a hole punch or scissors to make one hole into the side of 4 cups (about ½ inch below the rim of the cups).Weight for bottle (sand, dirt, small rocks, etc.) (optional).It is best suited for students in elementary and middle school. This activity will take anywhere from 10-30 minutes of preparation and will provide about 30 minutes to an hour of learning time. You can choose one weather instrument to make or build all three! Now that we understand a little more about these weather instruments, let’s get to building them. As air sinks, the pressure increases, which usually leads to calm weather. When air rises, low pressure is created which can cause clouds, rain or storms. Weather vanes measure the wind direction, or where the wind is coming from – the north, south, east or west.Ī barometer measures air pressure as air rises or sinks in the atmosphere. Anemometers are used in collaboration with weather vanes. Wind speed is important when predicting weather patterns because wind moves heat as well as moisture from one place to another. They use instruments such as anemometers, barometer and weather vanes to study the different conditions that affect weather.Īn anemometer is a tool that measures wind speed. Meteorologists are scientists who study the conditions in the earth’s atmosphere to forecast and help us understand the weather. It describes the level of heat or cold, wetness or dryness, calm or storminess, cloudiness or clearness. Weather is the condition of the air, or atmosphere, at a certain time and place. But first, let’s consider what these instruments tell us about weather. In this activity, learners will investigate different types of weather instruments and make their own at-home mini weather station, complete with an anemometer, barometer and weather vane. This time of year, the weather can be quite unpredictable.
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