David A. Adler

One of the greatest stars of the rock & roll era, David Bowie evaded easy categorization throughout his career, operating as the artiest rocker within the mainstream and the most accessible musician on the fringe. Bowie may have trafficked in ideas cultivated in the underground, but he was never quite an outsider as far as rock & roll was concerned. From the outset of his career in the 1960s, he attempted to break into the Top 40, playing British blues, mod rock & roll, and ornate pop before finally hitting paydirt as a hippie singer/songwriter.

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.

What does a million look like? A billion? A trillion? These huge numbers are hard to visualize. This book explains quantities in terms children can understand. For example, one million dollars could buy two full pizzas a day for more than sixty-eight years, and it would take the heads of ten thousand people together to have one billion hairs. The dynamic math duo of David A. Adler and Edward Miller explain the concepts of millions, billions, and trillions in a light hearted way.