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In this long-term activity, learners make a home for a colorful community of microorganisms.

In this activity, learners use simple items to construct a device for indicating air pressure changes.

In this activity, learners are challenged to design and construct a jointed figure that moves in a motion (something like jumping jacks) when a string is pulled.

This guide outlines how to plant a garden even if you don't have a yard!

In this activity, learners build an instrument for catching and observing flies. Learners act as entomologists, attract flies into a jar using a slice of apple, and then observe the flies' behavior.

In this activity, learners use simple items to construct a device for indicating air pressure changes.