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The Mississippi: America's Mighty River

Robin Johnson (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791669

This wonderful book takes readers along the mighty Mississippi. Often celebrated in music and literature, its exploration by explorers spurred the growth of a new nation. Today, the Mississippi not only provides transportation for agricultural and industrial goods but also supplies water for millions of people.

Plants in Different Habitats

Rebecca Sjonger, Bobbie Kalman (authors)

Publisher: Crabtree Publishing Company ISBN: 9781427166524

Plants are living things that grow and change. Over time, plants have made remarkable adaptations to suit the habitats in which they live. Simple text and beautiful 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.

Changing Seasons

Bobbie Kalman, Kelley MacAulay (authors)

Publisher: Crabtree Publishing Company ISBN: 9781427166487

Changing Seasons clearly explains the fascinating changes that take place in nature every year. This vibrant book takes an in-depth look at why there are four seasons, the patterns that appear in each season, and how these changes affect both plants and animals.

Earth's Coasts

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778790266

In this beautifully photographed book, Bobbie Kalman takes children on a tour of different coasts, where they can ride some breathtaking ocean waves or meet underwater animals that live in nearby coral reefs. Children will also be introduced to some amazing coastal cities and learn about famous coastal rock formations.

Earth's Mountains

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778790273

Young readers will be fascinated to learn about how mountains are created and change. Through breathtaking photographs, they will wonder at Earths majestic mountains and meet some of the people and animals that live in the often-harsh environment so high above the ground.

Earth's Rivers

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778790280

Why do people need rivers? What causes rivers to flood? These are just a few of the questions answered by this fascinating introduction to rivers.

What Are Minerals?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197429

Minerals are chemicals that are the building blocks of rocks. Metals, crystals, and gemstones are all minerals found in rocks. This interesting book describes how to identify minerals, where they can be found, the rock cycle process, the uses of minerals, and how they are mined.

Science, Medicine, and Math in the Early Islamic World

Trudee Romanek (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195630

The scientific contributions of the early Islamic empires to science, medicine, and mathematics is considerable. This revealing book explores: their public hospitals, libraries, and universities; their achievements in mathematics and astronomy, and the pursuit of alchemy; Arabic numbers; optics; music and musical instruments; poetry; and education.

How to be a Rock Collector

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197399

Rock collecting is a hobby that is easy to start. This engaging book describes how to dig, where you can and can't dig (restricted in national parks), the necessary equipment, how to identify rocks and gems, and the proper recording and storage of your collection.

What Is the Rock Cycle?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195258

What is the Rock Cycle describes the natural transformation of one type of rock into others. Beginning with igneous rocks made in volcanic eruptions, rock is weathered and eroded gradually to form a sediment. This sediment is then deposited and pressed into layers making sedimentary rocks. These in turn are transformed by heat and pressure into metamorphic rocks. Heat makes these melt into magma which, together with molten rock from the core of the Earth, make new igneous rocks.

What Are Sedimentary Rocks?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195241

It all starts with erosion for sedimentary rock. Worn down bits of rock become pressed together under pressure into strata, or layers. The formation of rock such as sandstone, shale, limestone, and dolomite is explained in this fact-filled book. Readers will also learn that this type of rock is useful in determining the Earths geological history because its layers often hold fossils and other geological clues.

What Are Crystals?

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197405

Crystals are made up of minerals hardened into distinct shapes with regular repeating patterns. This informative book takes a look at the underground process that creates crystals, from sparkling quartz to ordinary salt, as well as where they are found and how they are mined.

What Are Fossils?

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197412

This fascinating book explains how plants and animals become fossils, how they are extracted from excavation sites, and how paleontologists and geologists piece together Earth's history by studying these ancient clues.

What Are Igneous Rocks?

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195227

Igneous rock has a dramatic beginningit requires red-hot volcanic activity. This fact-filled book explains how granite, lava, basalt, silica, quartz and feldspar are formed after hot, molten rock cools. Readers will also learn about volcanoes and tectonic plates, the minerals that make up igneous rocks, and the crystallization of rock material.

What Are Metamorphic Rocks?

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427195234

Heat, pressure and stress can also change some igneous or sedimentary rocks into other kinds of rocks. This fact-filled book describes the process that turns limestone into marble, shale into slate, and granite into gneiss. Metamorphic rocks are often used as materials for floors, roofs, and counter tops because of their beauty.

Explore Earth's Five Oceans

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194824

Oceans cover three-quarters of the planet. This fascinating book shows how the world's five oceansPacific, Atlantic, Indian, Southern, and Arcticare interconnected and why they are vitally important to the rest of Earth. Concise text, easy-to-read maps, and dazzling full-color photographs provide kids with an overview of these unique biomes.

Explore Earth's Seven Continents

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194831

This concise overview of the seven continents explains to children what a continent is and what factors make each continent unique, such as landforms, climate, animals, and people. Full-color photographs and age-appropriate maps accompany each brief examination of a continent.

Soil Erosion and How to Prevent It

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791232

Soil Erosion and How to Prvent It helps young readers see the real impact of erosion on all life. This intriguing book describes the processes of weathering, erosion, and deposition, the impact of erosion on plants and animals, and kid-friendly steps to preventing erosion.

Micro Life in Soil

Natalie Hyde (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791225

Young readers will be astounded by the tiny organisms that live in soil, their ecological roles, and how they adapt to living there. Children will learn the value of even the smallest bacteria and be amazed by the impact that soil degradation has on an entire ecosystem.

Mechanical Engineering and Simple Machines

Robert Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191076

This engaging and informative book explores the science of simple machines and how it relates to the exciting field of mechanical engineering. Readers will learn how mechanical engineers design and innovate machines we use every day. Readers then apply the engineering design process to tackle a design challenge of their own.

Civil Engineering and the Science of Structures

Andrew Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191052

Civil engineering is one of the oldest engineering fields. Civil engineers are involved in the design and construction of various structures, including high-rise buildings, sports stadiums, canals, dams, and bridges. This book gives readers a up-close look at the technology used to build various structures around the world, including the ancient pyramids, the Eiffel Tower, the Golden Gate Bridge, and modern skyscrapers. Readers learn about the design process and tools used by civil engineers and are guided through a design challenge to create their own stable structures.

How Is Soil Made?

Heather L. Montgomery (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791218

How Is Soil Made introduces children to the concepts of organic and inorganic parts of soil, the nutrient cycles of plants, and decomposition. Complex processes such as weathering, erosion, and deposition are also made easy to understand.

Different Kinds of Soil

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9780778791201

Children will enjoy finding out about different types of soils from different climates, what animals and plants live in these different soils, and just how valuable soil is to human life.

Aerospace Engineering and the Principles of Flight

Anne Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191045

Aerospace engineers work with different kinds of aircraft, from gliders to space shuttles. This book introduces readers to this profession. Readers learn how engineers use the principles of flight to design and innovate airplanes, rockets, and more. Clearly written text outlines the steps in the engineering design process and guides readers through the steps to create their own flying machines.

Ocean, Tidal, and Wave Energy: Power from the Sea

Lynn Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427163813

The natural movement of water has long been used to create energy. New forms of hydropower are being researched as alternative ways to create clean renewable energy. This remarkable new book describes how water flow is being used in tidal and wave energy farms, and how the oceans contain enough heat in the surface water to power the world! Case studies highlight the potential advantages and disadvantages of pursuing these different kinds of power.