Explains the science of motion, discussing potential and kinetic energy, force, gravity, friction, and speed, and includes experiments and an annotated list of Web sites and books.
Presents a study of heat energy and how it works and discusses the sources of heat, how heat changes things, temperature, radiation, convection and conduction, and body heat.
Explains what physical properties are, discusses the difference between extensive and intensive physical properties, looks at some of the physical changes that occuron a regular basis, and examines chemical properties and changes.
Tells the story of Dmitri Mendeleev's organization of the elements in the periodic table and discusses chemical symbols, atomic numbers and mass, states of matter, and the differences between the table's groups.
Presents an introduction to geology, the study of Earth and its features, describing various minerals, crystals, and rocks, and including discussion of rock recycling, mining, and the uses of rocks and minerals.
