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In this activity, learners construct hand-held altitude trackers. The device is a sighting tube with a marked water level that permits measurement of the inclination of the tube.

In this outdoor mapping activity, learners explore where plants grow and map plant-distribution patterns.

In this activity, learners design and build their own parachute using household materials with the goal of landing their passenger safely on a target.

In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.