Books of Science! "Keep It Afloat!" by Julian Rowe and Molly Perham. Published by Children's Press, 1993. "On the Water" by Julie Fitzpatrick. Published by Silver Burdett Company, 1984.
Did You Know That? Most fish have swim bladders that let them take in air to rise or sink, like a submarine? It's easier to float in the Dead Sea than in a pool? The Dead Sea is very salty, and all the extra salt makes the water heavier, and it holds floating things up higher than most anywhere else. The biggest ship in the world is the Happy Giant, a tanker that weighs 622,571.5 tons when fully loaded?
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