Most of us eat three full meals a day, but where does the food that reaches our plates, stocks our fridges, and fills the supermarket shelves come from? This informative book shows how methods of growing, using, and delivering food - one of the most vital resources to humans - have developed and changed throughout time. Find out about the history of food production and present-day methods of farming. Learn about food delivery, the processes used to preserve and store food to make it last longer, how different foods are prepared, and food safety. Real-world examples encourage discussion of the ethics and worldwide impact of the production, distribution, and consumption of this global resource.
This timely book looks at the world's production of oil and our dependence on this natural resource. The majority of today's forms of transportation run on fuel that comes from oil, and hundreds of thousands of the items we use every day come from oil or oil-based products. Readers will find out about the origins of oil and its first use in industry, and learn how it is found, mined, and processed into many different products that are used all over the world. Real-world examples also consider the environmental and human disasters related to oil, encouraging discussion of the ethics and worldwide impact of the production, distribution, and consumption of this global resource. Possible alternatives to using oil are also discussed now that this important, non-renewable natural resource is running out.
What happens when you flip a light switch or press the power button on the TV? Electricity flows to the device and it turns on. Most of us use electrical gadgets all day, every day, without thinking about it. This book follows the journey from source to resource of solar power, one of the most exciting forms of renewable energy today. Readers will learn how electricity is made and collected directly from the sun and how it reaches us to power our modern world. Other sources of energy are also examined, as well as how grids work to move electricity across land and sea, and how it is fed into our homes. Real-world examples look at solar farms, solar furnaces, solar towers, and even solar transportation. With the world's nonrenewable resources such as oil running out, the advantages and disadvantages of solar power as a renewable alternative are discussed.
Imagine your family had to choose between sending you to school or having enough food to eat. This book tells how William Kamkwamba was forced to drop out of his school in Wimbe, Malawi, when a famine struck his village and his family, who relied on farming, could no longer afford his tuition fee. Instead of giving up on his education, William visited his local library often. It was here that he read a book about wind power. At the age of 14, William used what he learned from the book to build a windmill that brought power to his family’s home. He has since built his village’s first drinking water pump. William’s ingenuity, perseverance, and initiative are an inspiration to many people around the world.
This exciting book explains how the shape of Earth can change with the sudden movement of Earth's crust or when molten rock explodes out of an opening in Earth's surface. Young readers will be fascinated to discover how volcanoes form - destroying the landscape and creating new landforms at the same time. They will also learn about tectonic plates and fault lines, the damage earthquakes can cause, and how to stay safe when an earthquake happens.
This fascinating book explains how the shape of Earth is changed by weathering and erosion - the breaking down of rocks and minerals which are then carried from one place to another by water, ice, wind, and gravity. It is this movement that carves out valleys, causes trees to topple over, and creates or destroys good farmland. Examples of changes to landforms help show young readers the effects of weathering and erosion, which can happen quickly or sometimes take centuries!
Earth's surface is constantly being changed by heat, water, ice, salt, plants, and animals. Sometimes the changes are destructive to human activities such as farming and the building of structures. This interesting title shows the different ways people try to stop or reduce this change in the land. Examples feature such structures as dikes to hold back water and windbreaks, and adding shrubs, grass, and trees to an area of land to prevent erosion. Teacher’s guide available.
This informative book explains how Earth is covered by landforms and bodies of water, all of which change shape over time. Interesting images feature landforms such as mountains, valleys, and sand dunes, as well as waterways such as oceans, rivers, and ponds. Children will learn how they develop and why they change.
Read about the things that change outdoors with the season, including the hours of sunlight and the temperature.
Read about the kinds of jobs that people do as engineers, and how they use math, science, and creative thinking to solve problems.
Engineers don’t give up when they fail to solve a problem. Discover why learning from mistakes helps guide engineers to find the best solution.
Read all about primary colors, and how they mix together to make secondary colors.
Technology can make work easier, safer, and more fun. But some technology can also be harmful to the environment. Read about how we can make responsible choices in our use of technologies to help lessen the harm to the environment.
Energy powers the things that make our lives easier, safer, and more fun. Read about the Earth-friendly tools that are used to gather energy.
Explore each season with vivid photographs and detailed sensory descriptions
Explore each season with vivid photographs and detailed sensory descriptions
Do you like rocks? This book is a great resource for the young geologist. Learn all about different types of rocks and gems in this level 3 reader. Perfect for 1st grade through 3rd grade students. Discover Reading titles feature short sentences, word lists, and questions at the end of each book to further the learning process.
Look up in the sky or down in this book to see amazing photos of airplanes. Young aviators will delight in flipping through each photo with a title beneath it.
One evening at dusk a wind current carries a lone firefly out over the sea. Glancing down into the water, the insect is mesmerized by the glowing bioluminescence, mistaking it for other fireflies. Seeking company, the firefly plunges into the waves. Luckily, there are human bystanders who can lend a hand. Based on an event witnessed by nature writer and ecologist Rachel Carson (The Sea Around Us and Silent Spring) where a firefly attempts to join its "family" in the ocean, this lyrical story written in verse perfectly illustrates the wonder and delight the natural world offers those who pay close enough attention. Back matter includes science facts about fireflies and bioluminescence, as well as information about Carson's life.
For decades, as the monarch butterflies swooped through every year like clockwork, people from Canada to the United States to Mexico wondered, "Where do they go?" In 1976 the world learned the answer: after migrating thousands of miles, the monarchs roost by the millions in an oyamel grove in Central Mexico's mountains. But who solved this mystery? Was it the scientist or the American adventurer? The citizen scientists or the teacher or his students? Winged Wonders shows that the mystery could only be solved when they all worked as a team--and reminds readers that there's another monarch mystery today, one that we all must work together to solve.
A young child adventures back in time to 70 million years ago to meet an Edmontosaurus, learning about this dinosaur's babies, its diet, and how it stayed warm in its cold habitat. This illustrated narrative nonfiction title includes a map of fossil findings, glossary, and further resources.
A young child adventures back in time to 125 million years ago to meet an Iguanodon, learning about what this dinosaur ate, its size, and how it traveled in a herd. This illustrated narrative nonfiction title includes a range map, glossary, and further resources.
Using the rhyming poetic structure of This is the House that Jack Built, author Yvonne Ng takes young readers on a cumulative path through the inner workings of a steam engine, from the big wheels rolling on the tracks all the way to the engineer driving the train.
A mother Canada lynx is on the hunt for snowshoe hares to feed her litter of kittens. Deforestation and construction development have pushed prey away from this lynx’s home area. How far will she have to travel to find food? This narrative nonfiction title includes a range map, notes on how to help lynxes, further resources, and a glossary.
A young child adventures back in time to 150 million years ago to meet a Diplodocus, learning what sounds this dinosaur made, its size, and what it ate. This illustrated narrative nonfiction title includes a map of fossil findings, glossary, and further resources.