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Counting With Quadrants
Source Institutions
Millions of organisms can live in and around a body of water.
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Experiencing Parallax With Your Thumb
Source Institutions
In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.
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Measuring the Wind
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In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.
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Measure the Sun's Size
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In this activity, learners make their own pinhole viewer in order to measure the size of the sun.
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Clear Water, Murky Water
Source Institutions
How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?