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In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.

In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.

Learners will follow a specific process to make their own paper using scrap paper, newspaper, or junk mail.

In this activity, learners act as epidemiologists by mapping the prevalence of HIV/AIDS worldwide.

In this activity, learners create 3D geometric shapes using straws and pipe cleaners.

In this activity, learners use a nail and magnet wire to build an electromagnet, which controls the movements of a paper dancer.