Learn how gravity affects your weight, space travel, and even the orbits of the planets! Includes a glossary of bold-faced vocabulary words, reading activities, an index of terms, and an answer key.
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Learn about the weather patterns, plants, animals, and people of the tropical rain forest. Vivid artwork shows thunderstorm formation, the giant trees of the forest canopy, and the unique adaptations plants and animals have made to live in the tropical rain forest. Includes a gl…
Have you ever wondered about earthquakes or tsunamis? How do they happen? What causes them? Read this book to find out the answers and so much more! Includes a glossary of bold-faced vocabulary words, reading activities, an index of terms, and an answer key.