Walker, Denise

Discusses the properties of different materials, metal extraction, refining techniques, and metal uses of the future, and includes hands-on investigations.

Introduces students to different kinds of acids and alkalis, where they can be found, how they affect other substances, and why they are important.

Photographs, illustrations, and diagrams describe chemical reactions, how they work, what they can do, and why they are important.

Explores the Earth and its chemical foundations, focusing on the topic of geological change, examining the planet's formation, rocky crust, changing rocks, and resources, and including photographs, discussion questions, and investigations.

Explores the Earth and its chemical foundations, focusing on fuel and the environment, discussing what fuel is, how it is extracted and refined, how plastics are made, the cost of fuel, and environmental factors, and including photographs, discussion questions, and investigations.

Introduces children to the various types of substances in the world, exploring how materials are made, how particles influence how those substances behave, and what role they play in everyday life.

An introduction to biology, focusing on reproduction, breathing, and health, and noting distinguished scientists in the field.

An introduction to biology, focusing on the importance of diet in keeping the body's systems in good working order, with introductions to notable discoveries and scientists in the field, feature boxes, and illustrations.

An introduction to biology, focusing on cells and the processes that make life possible, with introductions to notable discoveries and scientists in the field, feature boxes, and illustrations.

An introduction to biology, focusing on green plants and what they need to thrive and grow, with feature boxes, and illustrations.