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

In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

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

In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.