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Science Reference Center
Full-text articles to support research in applied sciences, biology, chemistry, earth and space science, and energy. Includes the Science Image Collection, a database of high-quality science images from National Geographic, UPI, Getty, NASA, and Nature Picture Library.
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No matter where you live on Earth, the water cycle plays an important role. Without water, you couldn't brush your teeth or take a bath. Water is used to grow crops and raise animals for food. It's used to manufacture products and as a source of energy. Nothing on Earth can survive without water. The water cycle is a fascinating process that makes our planet unique.
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There are many different kinds of rocks. But rocks have many things in common, too. All rocks are solid, are made naturally, and are made up of groups of smaller particles and minerals that are stuck together. There are three types of rocks: igneous, sedimentary, and metamorphic. Rocks have been used to make buildings, walls, and roads. In the form of fossils, rocks have taught us many things about the kinds of plants and animals that have lived on...
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"See how the weather can change the look of an everyday street in this fun science reader. With clear text and engaging images, readers will see how the sun, clouds, rain, and other types of weather change the appearance of a neighborhood street. This reader also includes instructions for an engaging science activity and practice problems to give students additional practice in sorting living and not living things. A helpful glossary and index are...
6) Looking up!
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Look up at the night sky. What do you see? This nonfiction reader introduces students to the subject of scientific observation, and teaches students about the things we use to observe and learn about the world around us. Aligned to state and national standards, the book contains easy-to-read text and nonfiction text features like an index, a glossary, captions, bold font, and detailed images to keep students connected to the text. A hands-on science...
7) Our sun
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"The sun gives us warmth. The sun gives us light. It makes the seasons change. Our sun is very important!"--
9) The seasons
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"During the summer it is warm outside. During winter it is cold. This is because there are different seasons. Can you name the other two seasons?"--
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La Tierra cambia constantemente. Aunque los cambios son de esperar, los seres humanos podríamos estar acelerando algunos procesos. Es importante que analicemos los datos y trabajemos juntos para reducir el impacto sobre el planeta.
Examines the issue of global warming, explains how humans may be contributing to the problem, and looks at ways to reduce human impact on the planet.
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