At first glance, gallium looks like any old metal, but drop it into your hand and it will melt into liquid from your body heat alone.
All the wooden sticks and Styrofoam balls you need to build the classic science project in one box.
When lightning strikes the ground, it can fuse some kinds of sand, clay, or soil into glass. This produces a hollow tube called a fulgurite that can suggest the form of a lightning bolt.
A distinctly non-naturally-occurring material that was created during the Trinity nuclear bomb test in New Mexico, trinitite is basically just glass, made when the heat from the blast melted the surrounding sand. That said, it’s extremely rare glass, since it’s now illegal to remove any more material from the Trinity site.
Give your Wunderkammer an element of danger with this sample of uranium ore. The material included in this metal tin is safe to handle if you use common sense (don’t lick it), but is also certified to be measurably radioactive.
Run a magnet over this bottle of ferrofluid, made of nanoparticles of a magnetic iron-containing compound suspended in a liquid medium, and it will burst into spiky shapes.
Our modern life is saturated with marvelous machines, so how about a distinctly non-marvelous one: the Useless Box, which automatically turns itself off every time you turn it on.
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