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In this water activity, learners discover ways to move water across the water table.

In this engineering activity, challenge learners to invent a water filter that cleans dirty water.

Learn how to make and fly a paper helicopter! This simple activity includes a template (for the copter "blades") and instructions for folding, flying, and testing designs.

In this simple and fun activity, learners build a tower of cups to explore distribution of weight. Learners make predictions about their towers and test their designs.

In this challenge, learners make a helium balloon hover in one spot and then move it through an obstacle course using air currents.