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Run out of wall space
waiting for you to get flustered
Build a color-changing light-up display with an agate slice: use it as a lamp
which is a dream come true for parents and teachers
arms and legs are made of delicately vanilla-scented
Saltwater Fuel Cell Robot Clothing Run out of wall spaceBuild a sleek, modern (and adorable!) walking robot powered by salt water and magnesium no batteries required! Discover how a metal air electrochemical cell stores and discharges electrical energy using a simple saltwater solution. Explore the science of electricity, currents, and electric potential. An innovative pump mechanism provides a steady drip of salt water onto the magnesium plates and the robot walks for up to one hour on just one drop of
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