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In this activity, learners build handheld rockets and launchers out of PVC pipes and plastic bottles. Use this activity to demonstrate acceleration, air pressure, and Newton's Laws of Motion....

In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car. Use...

In this activity, learners construct cars that are powered by hand-made, electric propellers. Learners construct the base of the car out of a craft stick, use brass tacks and a paper clip to make a...

In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary....

In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction. First, learners use relatively simple materials to construct...

In this activity, learners build a figure that moves and "comes to life" when they pull its string. This engineering activity introduces learners to simple machines, specifically levers,...

In this activity, learners build styrofoam boats powered by twisted rubber bands. Use this activity to introduce learners to potential energy, kinetic energy, Newton's Laws of Motion,...

In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams. <b>...