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In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.

In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

Learners use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor.

Learners tour their school or home looking for sources of indoor air pollutants (IAPs).

Learners examine the manufacturing process while they make picture frames from cereal boxes.

Learners construct and launch paper helicopters.