Johnson, Rebecca L

Takes readers on a walk through a tropical rain forest, showing examples of how the animals and plants depend on each other and their environment to survive.

Describes the climate, soil, seasons, plants, and animals of the North American prairie and the ways in which the plants and animals depend on each other and their environment to survive.

Describes the climate, seasons, plants, animals, and soil of the boreal forest, a biome or land zone, which stretches across the northern parts of North America, Europe, and Asia.

Examines how some animals communicate through the chemicals known as pheromones.

Explores the field of nanotechnology, the science of creating materials and machines on an ultra-small scale, and discusses its possible uses.

Text, illustrations, and photographs describe the structure and functions of plant cells.

Takes readers on a journey into the ocean, showing examples of how the animals and plants of the ocean are connected and dependent on each other and the ocean's saltwater environment.

Takes readers on a walk at a sheltered bay, showing examples of how the animals and plants of estuaries are connected and dependent on each other and the estuary's mix of fresh and salt water.

Takes readers on a journey into a river, showing examples of how the animals and plants are connected and dependent oneach other and the river's freshwater environment.