Things That Float and Things That Don't

It can be surprising which objects float and which don't. An apple floats but a ball of aluminum foil does not. If that same ball of foil is shaped into a boat it floats! Why? And how is it possible that a huge ship made of steel can float? Answering these questions about density and flotation is David A. Adler's clear concise text paired with Anna Raff's delightful illustrations. Activities that demonstrate the properties of flotation are included.