Nature's changes

Simple text and images highlight how plants have adapted to life in the Arctic, in aquatic environments, and in other habitats, such as those in deserts and grasslands.

Explains how several kinds of storms form, describing the science of, and presenting interesting facts on, thunderstorms, hailstorms, blizzards, tornadoes, and hurricanes.

Describes how different processes, including evaporation, condensation, precipitation, and run-off, work together to move water from the ground to the air and then back down again.

Presents an introduction to the concept of camouflage, in simple text with illustrations, describing what it is, why they do it, and provides examples of different animals that use it, including lizards, fish, butterflies, and rays.

Explains how several kinds of storms form, describing the science of, and presenting interesting facts on, thunderstorms, hailstorms, blizzards, tornadoes, and hurricanes.

Describes the process of photosynthesis and the plants that live in boreal forests, tropical rain forests, deserts, wetlands, and several other habitats.

Presents an introduction to the concept of metamorphosis, in simple text with illustrations, describing what it is, and providing examples of different animals that it happens to, including butterflies, ladybugs, frogs, dragonflies, and grasshoppers.

Presents an introduction to the four seasons--summer, spring, winter, autumn--including information on how the earth moves around the sun, how it tilts on its axis, and provides descriptions of each of the seasons, explaining what happens to plant and animal life, in simple text with photographs.