Las selvas ebook
Guided Rd. Level S
If asked to define a forest, readers might say, It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive."
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Bikes and Boards ebook
This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning.
Climbing and Diving ebook
This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb.
The Quest for Speed: Vehicles ebook
Readers learn the history of travel and discover the factors that influence motion for all types of vehicles. They also learn how speed is measured and how engineers are seeking new and better ways to bring fast, safe travel to people.
The Quest for Personal Best: Individual Sports ebook
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How Toys Work ebook
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How Amusement Parks Work ebook
After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides.
Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. In this book, readers learn the science of plate tectonics and its role in the development of earthquakes.
Volcanoes erupt every day. Some volcanoes erupt constantly, while others lie dormant for years or even centuries. In this book, learn what happens beneath the Earth to cause a volcanic eruption.
Readers will learn how and where tornadoes hit, and how people protect themselves from life-threatening winds. Readers will be highly engaged from cover to cover as they learn the science behind these storms.
Hurricanes plague the tropics from June through November. Readers learn how and where these storms form and the dangers they pose to the land and people who live in Gulf and Atlantic coast regions.
Floods and Blizzards ebook
Floods and blizzards may be very different, but they do have one thing in common. In this book, readers will discover they have one vital ingredient in common: water.
Seeing a forest fire rage out of control is very frightening. Sometimes, however, fires are set intentionally to benefit the environment. Readers will learn what fire is, how it burns, and how fires can both help and harm the areas they affect.
Deserts may seem like harsh, uninhabitable places, but they support a diverse quantity of plant and animal life. Readers learn about hot and cold deserts alike, as well as semi-arid and coastal deserts.
Readers learn all about wetlands and their complex interactions with plants and animals in this colorful title! They provide homes for many different kinds of plants and animals that are well adapted for the soggy conditions.
A forest is unlike any other biome on Earth. There are many life cycles found within a forest. Learn about the energy pyramid that explains the numbers of forest plants and animals. Learn about threats to these lively forests and how they survive!
A pond may seem quiet and subdued, but this unique ecosystem is filled with active life cycles. Students learn what distinguishes a pond from other bodies of water, the plant and animal life within it, and how they contribute to the pond itself.
Learn all about tropical and temperate rainforests and the differences between these two unique biomes. Rainforests are filled with wonder and mystery, from the tall trees in the canopy to the dark and damp leaves on the forest floor.
Oceans cover 70 percent of the Earth's surface, providing students with a variety of plant and animal life to learn about. Students will also learn about the beach, tides, cliffs, bays, coastlines, coral reefs, and tide pools.
What takes the shape of the container it is in and changes shape when the container changes? Liquids! Liquid is a state of matter that has some big differences from solids and gases. Learn all about liquids with this colorful title!
How does a gas change to a liquid? Through condensation! In this book, learn all about condensation and how it happens.
What continues to expand to take up all the space it can? Gases! Gas is a state of matter, like a liquid or a solid. But it has properties that are quite different. In this book, read all about the differences and what makes a gas a gas.
How does a liquid become a gas? Through evaporation! Evaporation helps make puddles disappear after it rains. In this book, learn all about evaporation and how it happens.
What does this book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this book to learn about solids and how they are different from liquids and gases.
Melting and Freezing ebook
Ice cream is a solid. But when it melts, it becomes a liquid. Solids can change to liquids and back again by melting and freezing. Read this book to learn what happens when heat and cold and solids meet.
Learn all about planet Earth in this engaging, colorful title! Earth is our home. It is a big, beautiful place that orbits the sun. What else is there to know about Earth? Read this book to find out!
Earth is not the only planet in our solar system! It is one of eight planets, many moons, and other objects that orbit our sun. In this book, learn all about the similarities and differences between these planets.
There is a bright light in the night sky. Sometimes it is round, sometimes it is a crescent, and sometimes it is not there at all! These are the phases of the moon! Read all about our moon and the moons surrounding other planets in this book.
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Asteroids and comets shoot straight through space. They just look like bright lights with tails, but there is much more to these fascinating objects! Learn all about asteroids and comets in this book.
Bright stars twinkle in the night sky. Have you looked up into the sky on a clear night and seen these tiny points of light? Did you know that there are many kinds of stars in space? Find out all about them in this book.
What does the sun do for us other than give us light during the day? It gives us warmth, energy, and so much more! Learn all about the sun in this book.
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