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In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.

In this activity, learners will use their nose to sniff out hidden scents using extracts and cotton balls. Activity includes materials list, game instructions, STEM connections and more.

If you had a long tube with a 5 millimeter wide slit, would you see the entire Golden Gate Bridge?

Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.