Gareth Stevens vital science. Physical science

Photographs, illustrations, and diagrams describe the properties of sound; and provides an understanding of the concepts of wavelength, frequency, amplitude, decibels, sonar, and ultrasound.

Introduces the basic components of matter, describes the difference between acids and bases, explores the workings of chemical reactions and reactivity, and discusses naturally occurring chemicals.

Photographs, illustrations, and diagrams describe the properties of energy; and explain concepts such as kinetic and potential energy, chain reactions, energy pyramid, and power grid, along with various ways that plants and animals use energy.

Explains the scientific concept of matter, discussing atoms, molecules, solids, liquids, gases, matter and energy, and the properties of substances, looks at how different materials are used, and includes a glossary.

Explains the science concepts of forces and motion, discussing speed and acceleration, Newton's Laws, balanced and unbalanced forces, gravity, friction, pressure, and simple machines, and includes definitions of terms, and a look at how forces and motion are used in everyday life.

An introduction to electromagnetism, one of the most fundamental forces in the universe, discussing the nature of electricity, static electricity, how electricity and magnetism work together, generators and grids, and electronics.

Photographs, illustrations, and diagrams describe the properties of sound; and provides an understanding of the concepts of wavelength, frequency, amplitude, decibels, sonar, and ultrasound.