Tag: rock
FlipFact (September 15, 2019): Why does pumice float on water?
FlipFact of the Day: Pumice floats on water, and can even stay afloat for years. Lightweight and porous, pumice is…
Museum-worthy: This 73,000-year-old drawing is the oldest ever found
Ever feel like you’re such a terrible artist? If your sketches had been 73,000 years earlier, they could have earned…
