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Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.

In this activity, learners assemble large cubes to make nano-related images. Learners discover how different objects are related to nanoscience and nanotechnology.

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

Learners observe two joined glass tubes containing a conductive salt solution. Electrodes are passing an electric current through the water.