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Mother Earth writes a letter telling people about herself and asking them to take care of her for themselves and for all living creatures.

Text and illustrations describe some of the plants and animals that live and grow on the earth and how their life cycles are affected by the changing seasons.

"...an up-to-the-minute encyclopedia specially written for young students.

Photographs and text describe the unique characteristics of animals, large or small and from various habitats, to illustrate their importance to the world's ecology.

"Read about when fall begins, why leaves change color and what animals do during this season"--Provided by publisher.

Photographs and simple text explore what is spring, why do we have seasons, when does spring begin and what do animals and people do in spring.

"Read about when is it winter in North America. Why winter weather is cold, where do animals go in the winter, and what do people do in the winter.

Separated from his science team on a mountain after a landslide, Joe is in no hurry to get back.

Examines the different forces of erosion, such as wind, waves, acid rain, and glaciers and explains how those forces affect the topography of the eart.

Everything is connected on Earth, even if we can't see it right away.

Presents more than 150 LEGO models of incredible things found on planet Earth including plants, animals, and geological features.