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This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Steve Spangler is one of the most well-known ...

STEM advocate and toy developer Vanessa Raponi wows us with two DIY experiments, showing us step-by-step how to make a density tower and an ooblek, both of which teach kids about science in a fun, ...