Discusses in simple terms, with examples from nature and technology, the effects of shape on the speed and efficiency of movement through air and water.
Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan.
On a visit to a natural history museum, a little boy sees fossilized skeletons of dinosaurs and learns what archaeologists have discovered about the physical appearance and habits of these huge, extinct creatures.
Briefly introduces various types of dinosaurs whose skeletons and reconstructions are seen in museums and explains how scientists uncover, preserve, and study fossilized dinosaur bones.
Introduces the solar system and its nine planets. Includes directions for making two models: one showing relative sizes of the planets and the other, their relative distances from the sun.
