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Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

In this activity, learners will be able to measure themselves in nanometers. A nanometer is a billionth of a meter, a unit of measurement used in nanotechnology.

Learners use Duplo bricks to build antibodies with shapes that match model viruses.

In this activity, learners add food coloring to hot and cold water in order to see how fluids at different temperatures move around in convection currents.

In this activity, learners explore how eating unhealthy food can damage a heart and arteries.

Some bugs can walk on the surface of a lake, stream, river, pond or ocean.