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In this chemistry challenge, learners identify an unknown white powder by comparing it with common household powders.

In this activity, learners create channel features with flowing water, comparing their observations to real images of Mars and Earth taken by satellites/orbiters.

In this activity, learners explore how nanotechnology is being used to create new types of protective fabrics.

In this challenge, learners have to figure out in what order to combine five solutions to change the color from clear, to yellow, to blue, and back to clear.

In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio.

Learners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up).