This book examines the history and origins of the modern conflict that grips Pakistan and helps the reader understand why the country is in conflict.
Get swept away with this investigation into erosion. Following scientific and engineering practices, this title presents a hands-on, inquiry-based science investigation. Age-appropriate experiments build students' understanding of Earth and space concepts.
In Biome Beasts: Desert Animals, readers will discover how desert animals survive and thrive in the driest places on the planet. Photos, text, and sidebars describe how these animals adapt to the challenging climate of these regions. Earth’s four desert biomes – hot, semiarid, coastal, and cold – each have their own set of challenges for the living things within them.
In Biome Beasts: Grassland Animals, readers will discover how these animals survive in prairies, steppes, and savannas around the world. Grassland biomes are home to a wide variety of animals. Whether grazing on grasses, building communities underground, or sailing overhead, animals have adapted to the challenges found in both temperate and tropical grassland biomes.
In Biome Beasts: Boreal Forest Animals, readers will discover how boreal beasts survive the harsh climate. The boreal forest teems with wildlife during the short, mild summer. This changes quickly when fall arrives. Only the living things that have adapted to the region’s freezing temperatures and frozen land can remain in the forest year-round.
In Biome Beasts: Deciduous Forest Animals, readers will discover how deciduous beasts rise to the challenges of the climate in each biome. Deciduous forests around the world are home to a variety of animals. Animals that are part of the temperate deciduous forest biome must adapt to the conditions of all four seasons to survive. Animals that are part of the tropical and subtropical deciduous forest biomes must adapt to both the wet and dry seasons.
In Biome Beasts: Tundra Animals, readers will discover how animals survive and thrive in the treeless tundra. Tundra biomes have the harshest climates in the world. From the tiny Arctic bumblebee to the huge polar bear, every animal that lives in the Arctic or alpine tundra biome has adapted physically or socially to the harsh conditions.
In Biome Beasts: Ocean Animals, readers will discover how animals survive in saltwater biomes and the skies above them. Most of Earth is covered by oceans and seas that are home to an amazing variety of animals. Some have adapted to life in the cold, dark aphotic zone. Others live in the disphotic zone where predators attack from above or below. Still others live in the top layer, the euphotic zone, where food is plentiful but competition for it is fierce.
In Biome Beasts: Estuary Animals, readers will discover how and why animals survive and thrive in these sheltered biomes. Life in the estuary is always changing. Ocean tides of saltwater flow in and out of the estuary and mix with the fresh water that flows from rivers and streams. The animals that swim or wade in the waters or make the mudflats their homes must have physical or social adaptations that allow them to live in the salty mix.
What country or culture does the food you eat originate from? Learn about how migration, history, and culture intertwine with the food we eat in the book From Your Table to the World. This book takes students on a journey across the world to learn about how cultural traditions spread and influence the food we eat today.
Explore the evidence and opinions behind the headlines on climate change. In Shaping the Debate: Defining and Discussing Climate Change readers will learn about the science behind the causes and effects of Earth’s changing climate and understand the political context. Then, decide where YOU stand on this important issue.
What will the weather do today? In Science Masters: Weather Prediction, readers will learn about ways people have developed to predict the weather, from looking at the sky to running models on a computer. Temperature, pressure, and wind speed are among the factors that determine whether to look out for sunshine or a tornado. Weather prediction not only helps you plan your day, but it can also even save lives!
Some planets are cold, dark, and lifeless. Not Earth! Our world is full of light, heat, and motion. What makes the difference? Energy! Energy flows through growing plants and blowing winds. It powers your body and the machines you use each day. Discover how the sun's energy travels to Earth and how it is stored and used by living things. Learn why heat in our atmosphere is rising and what people can do to control it.
Did you know that much climate change is caused by natural events? But how do humans influence climate change? Answer this question and learn how scientists make predictions about climate change. This title supports NGSS for Earth and Human Activity.
A region's climate affects nearly every part of animals' and peoples' lives. Learn about how humans contribute to climate change and what you can do to help limit its effects. This title supports NGSS for Earth and Human Activity.
The usual climate of an area can change drastically. But what causes climate change and how can you help protect the planet? Read on to answer these questions and others. This title supports NGSS standards for Earth and Human Activity.
Climate is an important part of every ecosystem. Even small changes in the climate can have a big impact. Learn about the affects of climate change on ecosystems and what you can do to help. This title supports NGSS for Earth and Human Activity.
In Biome Beasts: Tundra Animals, readers will discover how animals survive and thrive in the treeless tundra. Tundra biomes have the harshest climates in the world. From the tiny Arctic bumblebee to the huge polar bear, every animal that lives in the Arctic or alpine tundra biome has adapted physically or socially to the harsh conditions.
In Biome Beasts: Grassland Animals, readers will discover how these animals survive in prairies, steppes, and savannas around the world. Grassland biomes are home to a wide variety of animals. Whether grazing on grasses, building communities underground, or sailing overhead, animals have adapted to the challenges found in both temperate and tropical grassland biomes.
In Biome Beasts: Freshwater Pond Animals, readers will discover how these animals survive and thrive in freshwater pond biomes around the world. Life in a pond is exciting. Birds, bugs, and shrews skitter across the surface. Turtles and fish zip along under the water’s surface. Beavers, herons, and others make themselves at home by the pond’s edge.
In Biome Beasts: Estuary Animals, readers will discover how and why animals survive and thrive in these sheltered biomes. Life in the estuary is always changing. Ocean tides of saltwater flow in and out of the estuary and mix with the fresh water that flows from rivers and streams. The animals that swim or wade in the waters or make the mudflats their homes must have physical or social adaptations that allow them to live in the salty mix.
In Biome Beasts: Desert Animals, readers will discover how desert animals survive and thrive in the driest places on the planet. Photos, text, and sidebars describe how these animals adapt to the challenging climate of these regions. Earth’s four desert biomes – hot, semiarid, coastal, and cold – each have their own set of challenges for the living things within them.
In Biome Beasts: Deciduous Forest Animals, readers will discover how deciduous beasts rise to the challenges of the climate in each biome. Deciduous forests around the world are home to a variety of animals. Animals that are part of the temperate deciduous forest biome must adapt to the conditions of all four seasons to survive. Animals that are part of the tropical and subtropical deciduous forest biomes must adapt to both the wet and dry seasons.
In Biome Beasts: Boreal Forest Animals, readers will discover how boreal beasts survive the harsh climate. The boreal forest teems with wildlife during the short, mild summer. This changes quickly when fall arrives. Only the living things that have adapted to the region’s freezing temperatures and frozen land can remain in the forest year-round.
Yellowstone National Park offers researchers and scientists from around the world an opportunity to study a wide range of subjects throughout the Greater Yellowstone Ecosystem, one of the largest intact temperate zone ecosystems in the world.