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In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.

In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a sat

In this activity, learners will reuse plastic bags in an interesting way.

In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path.

In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States.

Learners make their own simple slide rules out of paper and learn how they work.

From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

In this activity, learners make self-assembled polymer spheres.

Learners press their fingertip onto a clean Plexiglas sheet. The fingerprints are then revealed as learners dust over the print with fingerprint powder.