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This activity (on page 2 of the PDF under SciGirls Activity: Hovercraft) is a full inquiry investigation into hovercraft engineering and design optimization.

Over $20 per group Ages 8 - 14 1 to 7 days
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On an airplane trip, learners have an opportunity to investigate the properties of air pressure at different altitudes.

free Ages 6 - 14 30 to 45 minutes