hydrodynamics

Presents a brief study of submarines, what they look like, what they do, and how they can submerge.

Explains the water cycle, focusing the scientific process by which water is used to create energy.

Describes the basic properties of materials, contrasting things that float and things that sink, and includes photographs, a picture glossary, and a quiz.

Captain Kidd and his crew explain why thing float and why some sink, including explainations of terms like gravity, buoyancy, and density.

Introduces the physics of water pressure, discussing its relation to everyday items such as faucets and spray bottles; presents several experiments; and features humorous cartoon illustrations.

Features a brief discussion of water, where it comes from, and how it is used, and provides instructions for seven water-related science experiments.