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In this activity, learners construct a home-made journal with simple, everyday materials.

This is a quick and simple demonstration about reflexes (second activity on the page).

In this activity, learners create their own obstacle course based on Bernoulli's Principle and try to get a floating ball from the start of their course to the finish line.

In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures.