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In this indoor and/or outdoor activity, learners make an anemometer (an instrument to measure wind speed) out of a protractor, a ping pong ball and a length of thread or fishing line.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.