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 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!
Sixty minutes of exercise a day is a habit children should get into at an early age. Not only does exercise build the body's strength and endurance, it helps prevent injury and improves concentration and mood. This engaging book explains the benefits of regular exercise and offers simple activities and advice on fitting fitness in during the day.
This informative book goes to great lengths to explain how scientists around the world use the metric system and related tools to help them compare, contrast, and analyze the measurement data they collect. Opportunities for hands-on learning make the content meaningful to readers as they refine their measuring skills.
Scientists use different kinds of investigations depending on the questions they are trying to answer. Accessible text and child-centered examples guide readers as they learn to plan simple investigations based on fair tests to answer their own science questions.
This engaging and accessible book explains how scientists use models to help them understand systems in the natural world. Readers learn about different kinds of models and discover the similarities and differences between models and the real objects and processes they represent. Readers are given several opportunities to create their own models.
Science uses evidence in explaining the natural world. Using relatable, real-world examples, this informative book shows readers how to construct an argument with evidence to support a claim. Readers will act and think like scientists as they learn how to distinguish between fact and opinion, and use evidence and reasoning to evaluate the claims of others.
Animals are endangered in many kinds of habitats and for different reasons. This intriguing book looks at why some animals have become endangered due to changes in their habitat. Examples include animals in the Arctic that rely on ice for hunting face the challenge of melting ice due to climate change, the populations of animals born only on particular islands and nowhere else are shrinking, and many kinds of ocean animals are being poisoned by water pollution. Ideas are included to encourage readers to help protect these endangered animals and their habitats.
This entertaining book shows how animals communicate to share information, attract mates, or scare away enemies. They sing, growl, howl, spray smelly scents, and make their body parts bigger. Students will have fun learning about these communication skills and be asked to compare their communication methods with those of animals.
Animals adapt, or change, to stay alive. Adaptation can happen in an animal’s body or in the way it behaves. Some adaptations have taken place over many years, and others are caused by changing habitats due to the actions of people. This informative book shows animal adaptations due to changing climates, habitat changes, and opportunistic behaviors that help animals survive, such as the creation of new species. The coywolf, for example, is a new species. It is part coyote and part wolf, and has a much greater chance of survival than either of the animals that created it.
This fascinating book explains that some animals must learn the basics of staying alive from their mothers, while others know how to survive without being taught. Students will discover how some bird and mammal mothers teach their babies how to find food and keep safe from predators. Readers will also learn about other animal skills such as finding their way over great distances. People need help from navigation instruments, radar, or maps. Animals use cues such as the sun, stars, or Earth’s magnetic field when they are swimming or flying. This book asks students to look at the skills of animals and compare them to their knowledge and ways of learning.
People have learned a lot from animals and copied many of their ways of surviving. This interesting book details many, often surprising, examples: bird flight and airplanes; defensive equipment such as helmets and turtle shells; strong spiderlike threads for surgeries; heating and cooling systems such as those created by termites; camouflage patterns on uniforms or vehicles in battle; and animal prints copied in fashions and decorations.
This fun title asks readers to think about how different body coverings protect animals by keeping them warm and safe. From fur and feathers to scales and shells, readers get a close-up look at different animal coats to see how they suit the habitats and lives of the animals that are covered in them.
The useful information in this book on keeping your body and surroundings clean will help children understand germs and how they spread. Bright images highlight important concepts such as how to dispose of used tissues and wash your hands.
This engaging title emphasizes healthy living habits for kids, such as getting enough sleep, exercise, and healthy food, as well as taking care of yourself when you are ill. Children will also learn about the people who help us stay healthy such as parents, teachers, doctors, and sports coaches.
Enjoy reading about the changes in a rabbit as it grows from a newborn bunny to a full-grown adult.
Discover how a tiny seed grows to become a pumpkin with the help of water, sunlight, air, and soil.
Read about the different tools of technology we use throughout our day. Think about which kinds of technology you use yourself.
Many technologies are made up of different parts that each perform a certain job. This basic introduction to systems will show you how all the parts work together as a group to complete a task.
Technology is the name we give to the tools that help make work easier, safer, or more fun for us to do. Learn about the basics of technology and how it improves our lives.
Read about the things that change outdoors with the season, including the hours of sunlight and the temperature.
Read about the invention of certain tools, and how they have been improved over time to become the technology we use today.
Read about the Sun and the Moon, and how they change positions in the sky throughout the day. Find out what else can be seen in the sky.
Read about the kinds of jobs that people do as engineers, and how they use math, science, and creative thinking to solve problems.
