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In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass.

Extract your DNA from your very own cells! First, learners swish salt water in their mouth to collect cheek cells and spit the water into a glass.

In this quick SciGirls activity (page 1 of the PDF under SciGirls Activity: Doghouse Design), learners will be introduced to the concept of thermal conductivity.

In this activity (on pages 4-5), learners make fake snow by adding water to the super-absorbant chemical from diapers, sodium polyacrylate.

In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.