The stories in Floating and Sinking introduce 4th and 5th grade students to the science behind why objects float and sink in air and water. Part 1 discusses the history of floating and sinking, including a story about the only president to have been awarded a U.S.patent. Several of the stories describe how scientists and engineers have put science to use in inventions such as ships, submarines, and balloons; others include descriptions of the ways that the uses of boats determine how they are designed and built. The final series of stories in the book explore floating and sinking in nature, including ways that children can determine their innate capacity to float or sink in water.

(ISBN 1-978-933008-07-3)

• Available for order at http://www.nap.edu/catalog/nsrc/index.html.
• Information about the Floating and Sinking STC unit
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