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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 activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this activity, learners build a tool called an inclinometer that can find the height of any distant object, from a tree to the North Star.

This is an activity about turbidity, or the amount of sediment suspended in water.

In this activity, learners create a map of a hidden surface using a "sounding stick" -- a technique similar to how underwater maps were once made.

In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.