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Anemometer for kids how to#

Take your anemometer outside and measure the wind speed.Use a red marker or red paint and put a large X on one of the cups.Use two thumb tacks per cup and attach a paper cup to each end of both rulers.The nail should go through the hole in the rulers. Place a washer between the dowel rod and the rulers and attach the cross to the dowel rod using the remaining nail.Make sure the holes line up with room to place a nail through them. The rulers should be glued at a 90º angle to one another. Glue two wooden rulers together at their centers.Nail the wood square to the 12” dowel rod.two wooden 12” rulers (with a hole in the center), or 12” strips of wood and drill a hole in the center of each (arms of instrument).1 piece of wood, 15 cm square (or 6 inches) (base of instrument).4 paper cups of equal size and shape (rotating cups).Details on all these subjects can be found by entering key words on. Don’t forget to mention the differences in heating and cooling rates of various surfaces such as land and water, and how pressure gradients affect wind speed. Discuss some of the factors that might affect the speed of the wind. Discuss the fact that the wind in the upper atmosphere moves at a different speed than the wind on the surface of the earth.

Anemometer for kids how to#

Click here to download a Word Document on how to convert rpm to mph.ĭiscuss the importance of making accurate measurements in predicting weather.

Answers to questions in observations: #2) 3 mph #3) 8 mph.

One cup must be marked “X” or painted so that the students can easily count the revolutions of the instrument.

You may substitute any other materials you have available, just be sure that both spinning arms are the same length. We recommend wooden rulers because they are a good size, they have a hold in the center, and they are inexpensive.

Any size wood pieces will work if you do not have a way to cut the strips to a particular size.

Initiate a discussion on the different things wind speed affects (helps or hurts) in the world. Make sure the students understand the purpose of an anemometer. Hey build, they will not be able to accurately convert their measurements to miles per hour. Without a complicated calibration of the instrument t They will multiply this number by 2, giving them the wind speed in rotations per minute (rpm). To measure the wind speed, students will count the number of times the anemometer makes one complete rotation in 30 seconds. The faster the wind is blowing, the faster the arms will spin. Wind from any direction will catch one of the cups and start the rotation of the arms. One type of anemometer consists of four arms with cups on the ends that rotate freely.

Adobe PDF Open Document Word Document Making, using, and understanding an ANEMOMETER OBJECTIVES:Īn anemometer is an instrument that meteorologists use to measure wind speed.