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In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.

In this activity (on page 2) about fingerprint analysis, learners use graphite from a pencil and scotch tape to capture their fingerprints.

In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.

This activity teaches combustion as the interaction of a fuel source and oxygen.