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1) 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."--
3) 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"--
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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!"--
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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!"--
8) DNA
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"Twins can look identical. And siblings or children may look similar to other people in their family. Even kittens can have the same markings as other kittens in a litter. But why? The answer is DNA. DNA is what makes family members look similar but also makes them unique. DNA is what makes you, well, you!"--
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"Our world is a diverse place. It is covered with growing plants, flowing rivers, and roaring winds. And it's all made of matter. Even you and this book are made of matter. Matter can be broken into tiny pieces. These pieces fit together to shape the world."--
11) Fotosíntesis
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Describes the process of photosynthesis, explaning how plants use solar power to create their own food, and details how plants fit within the food chain.
14) Water cycle
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"Every living thing needs water to live. Water is an important part of life. There is water all around us. It moves through the water cycle. It brings water to all parts of the planet."--
15) 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."--
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."--
17) Extreme weather
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"Twirling tornadoes, horrific hurricanes, deadly dust storms, and blowing blizzards. Depending where you live, you may have experienced one of these frightening storms. Although being caught in extreme weather can be dangerous, being prepared can save your life!"--
18) Shadows
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"Have you seen your shadow today? It follows you around. Shadows can change shapes and sizes. What else has a shadow?"--
19) 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...
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