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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...
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"Forces are part of our everyday lives. And knowing how they work makes us all more powerful! Balanced forces will keep you upright on your bike. Unbalanced forces will help you ride your bike as fast as the wind. Balanced and unbalanced forces play a part in all that we do."--
9) Gravity
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"If you throw a ball, it will soar through the air and then fall with a thump to the floor--thanks to gravity! Gravity makes life possible for all of us. Without gravity we would all float into space. So next time you do--well, anything--thank gravity."--
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"Dynamite is highly explosive. This is because it's a chemical reaction waiting to happen. Many things go through chemical reactions. When you cook or eat, a chemical reaction takes place. Understanding chemical reactions will not only keep you safe, it will also help reveal the world around you."--
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"When you mix chocolate and milk together you're making a mixture. Oatmeal cookies are mixtures, too. But chocolate milk and cookies are different kinds of mixtures. How many different types of cookies can you think of? You already know more about chemistry than you thought!"--
14) Photosynthesis
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"Have you ever seen a tree at the grocery store buying dinner? Probably not! Plants create their food in a very different way. They make their own food through photosynthesis"--
15) Earth's moon
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"Our moon is magnificent. Sometimes, it appears in the night sky as a massive glowing disk. Other nights, it can't be seen at all. Without the moon, our world would be a different place"--
16) How heat moves
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"When you run, you get hot. When you sit still, you get cold. Heat is always moving in and out of our bodies."--
19) Changing matter
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"We all know the three states of matter: solid, liquid, and gas. But what defines these different states? And what's plasma? What if something is in between states? Is a solquid a real thing? Perhaps there's more to matter than simply being a solid, a liquid, or a gas!"--
20) Electromagnetism
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"Electromagnetism - now that's a big word! But what is it? For starters, it's the force that runs the electronics in your home. Your TV, computers, and even simple light bulbs use electromagnetism. You can't see it, but it's hard at work. It may seem complex, but once you break it down it's simple."--