Photographs, diagrams, and illustrations describe the digestive systems, how foods are processed in the body, and the importance of good nutrition.

An introduction to geology of the Earth discusses plate tectonics, the rock cycle, and different types of rock.

Examines atoms and molecules by defining them and looking at what they do in the world.

Explores the composition of outer space and the objects and elements that appear therein, with a particular focus on planets and other bodies in our solar system.

Describes how the water cycle contributes to weather and climate, explains the importance of the sun on climate, and discusses the changes brought on by seasons and storms.

Looks at the effects of human activity on the environment and discusses steps that can be taken to reduce our negative impact, including recycling, chemical-free gardening, using renewable energy sources, and conserving water.

Introduces tools and instruments used in the sciences, including microscopes, binoculars, telescopes, thermometers, weighing devices, and computer technology.

Presents the history of many infections, infestations, and diseases, what's being done to stop them, and what you can do to stay healthy.