Members of the insect class often get a bad rap. People swat at them, stomp on them, and go to great lengths to repel them. Though some insects are pests that spread disease, many are actually helpers, pollinating plants and eating other insects that wreak havoc. Investigate the world of insects and discover that many are a class act!

Penguins must complete their life cycle in very cold temperatures. To protect their eggs from the cold, penguins use brood patches. Students will watch a penguin chick hatch from an egg and grow into an adult.

Ladybugs spend part of their life cycle as larva. Every day a ladybug larva eats about 30 tiny green insects called aphids. Young children will watch a ladybug go from egg to adult.

Because of strong herding instincts, Collies often try to round up animals and people. The movie "Lassie Come Home" featured one of these dependable dogs and made Collies popular pets. Young children will discover why Collies are known for their close companionship.

Compare a hummingbird and an ostrich; the differences are striking! One is tiny and hovers in the air like a helicopter. The other is massive and stays grounded, sprinting rather than flying. Though opposite in many ways, hummingbirds and ostriches share features such as feathers and wings that mean they are both birds. Discover how all birds are alike in this informative title.

Why is a small piece of metal heavier than a large piece of foam? Why does wood float in water? This books answers these questions as it teaches children about density in water and air.

The human body produces sweat to keep itself at a healthy temperature of 98.6 degrees Fahrenheit. Young readers will discover hot and cold and learn the effects of temperature.

Doctors are important members of the community. People come to them to seek help for illnesses and injuries. Doctors carefully decide how to treat patients. They listen to people and find ways to help them feel better. This title will teach beginning readers about the work doctors do to help people stay healthy. There are some jobs that keep our communities' wheels spinning. Doctors and dentists help us stay healthy and strong. Police officers keep...

Offering a stark contrast to hot, sandy deserts and tropical rain forests, the tundra is buried in snow and ice most of the year. However, life finds a way to flourish. During the short summer, flowers bloom and animals roam the land even though temperatures rarely reach 50 degrees Fahrenheit! This title will teach young readers how plants and animals survive in severe cold.

Space shuttles bring astronauts into and out of space. Children will learn about the history of space shuttles, the advanced technology aboard, and how these vehicles perform their missions.