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Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle.

In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.

The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.