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Learners take on the role of environmental engineers as they design water filters.

This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be; different

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.