Grade 3

4204 records found. Displaying 3937 - 3948.

Life Science

What are electrical circuits?

This comprehensive title introduces readers to current electricity and circuits - the pathways through which electricity flows. Detailed diagrams and supportive text explain the basic… More →

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Life Science

What are flowers?

Many plants produce flowers. In fact, flowering plants are the largest and most widespread group of plants. In this informative title, readers will learn about the different parts and… More →

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Life Science

What are Food Chains and Webs?

Sunlight does not go very deep into water so seaweed must grow at the surface where its rays can reach them. Starting with the sun, food chains link together plants and animals in various… More →

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Earth and Space Science

What Are Fossils?

Fossils provide a valuable look into our ancient past. By… fossils and the rocks they are found in, scientists understand the effects that events such as mass extinctions, meteroite i More →

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Economics

What Are Goods and Services?

Children are consumers, too, though they often do not realize it. This strikingly illustrated book helps youngsters understand the concepts of goods and services so that they recognize their… More →

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Earth and Space Science

What Are Igneous Rocks?

Igneous rock has a dramatic beginning - it requires red-hot volcanic activity. This fact-filled book explains how granite, lava, basalt, silica, quartz and feldspar are formed after hot,… More →

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Life Science

What are insulators and conductors?

This informative title introduces readers to the electrical properties of different materials. Readers will learn that conductors are materials that allow the flow of electricity, while… More →

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Life Science

What are leaves?

From broad and round to thin and long, leaves come in many different shapes and sizes. Vibrant photographs and accessible text explain the form and function of leaves. More →

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Life Science

What Are Light Waves?

This engaging title introduces readers to the science of light waves. Relatable examples, accessible text, and a creative design challenge help readers discover the properties of light waves… More →

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Earth and Space Science

What Are Metamorphic Rocks?

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 More →

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Earth and Space Science

What Are Minerals?

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… More →

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Life Science

What are natural structures?

"Structures" are part of many primary curriculum guidelines. They usually mean human-made structures such as bridges. Structures are made up of parts arranged in a way that serve a certain… More →

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