21st century junior library

Explains what hospitals are, looks at the various jobs that need to be done in a hospital, and asks questions designed to help young readers decide whether they would like to work at a hospital. Includes a glossary and resources for further research.

Introduces plants that produce food people eat.

"Learn all about the ancient animals known as mammoths and mastodons, from how they lived to how they are related to today's elephants."--Provided by publisher.

Introduces the Allosaurus, covering its physical appearance, habitat, fossils, and more.

Introduces the Ankylosaurus, covering its physical appearance, habitat, fossils, and more.

Introduces the Iguanodon, covering its physical appearance, habitat, fossils, and more.

Explores what plants are, their parts, how they grow, and more.

Introduces flowers, and explains how plants are pollinated by wind or animals to make seeds.

Examines the idea of "mutualism" in biology, where two or more animals exist in a team-like relationship, specifically the cattle egret and the hippopotamus, who keep a look out for one another to warn of approaching predators. Includes a glossary, resources for further information, and color photographs.

Tunnels examines the engineering concepts that make these important structures possible.