1-800-452-1261

M–F, 7:30 AM–5:00 PM CST

1-800-452-1261

M–F, 7:30 AM–5:00 PM CST

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Weather

Learn how to build your own psychrometer and anemometer -- just a few weather activities and reference materials that are free for your use.

Teaching Tornado shows how you and your students can experience the power of a tornado with this unbelievable demonstration model.

How fast is the wind blowing? How can wind speed be measured? In this activity, a handheld anemometer will be constructed to answer these questions.

In this activity, a sling psychrometer will be constructed and the relative amount of humidity in the air will be measured.