OVER 100 EXCITING EXPERIMENTS - The 100+ science experiments in this kit let kids explore the wonders of hands-on chemistry experiments. They'll launch a rocket, build and erupt, create fizzy ...
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94 years, 9 drops: World's longest experiment started nearly 100 yrs ago and is still onScientific experiments can take a few years to complete, but one of them has been going on for nearly 100 years. The slowest experiment in the world started in 1927, technically 1930, and is not ...
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