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In this activity, learners play a card game that explores different size scales--macro, micro and nano.

In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.

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

Learners make their own simple slide rules out of paper and learn how they work.

"Nature of Dye" allows participants to create their own dyes and art while exploring how chemicals interact and how these interactions can have real-world applications.

In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed.