Mathematicians say that symmetry has to be identical parts, but nature is never truly identical. However it is far more interesting than geometric shapes! Reading this book, children will become aware of the balance of things in nature. They will delight at amazing photographs of butterflies, beetles, leaves and flowers, fruit, sea creatures, and children. This book will show how a person with arms outstretched has five-fold symmetry like a sea star, and if you drew a circle around his or her body in that position, the navel would be at its center.
This engaging title introduces readers to materials that are either hard or soft. Using familiar examples, readers learn what makes hard and soft objects different and why they are suited for different purposes. Easy-to-understand text and colorful photos invite young readers to identify and classify hard and soft things around them.
Vibrant photographs and accessible text introduce young scientists to the concept of density. Readers are encouraged to explore what makes some objects float and others sink.
What materials will keep you dry on a rainy day? What materials will help you clean up a spill? Child-friendly examples and vibrant photographs support readers as they explore how different materials respond to liquids.
This engaging title helps young scientists identify, compare, and contrast natural and human-made materials. Child-centered text and vibrant images combine to clearly explain the properties and uses of these materials.
Structures are part of many primary curriculum guidelines. They usually mean human-made structures such as bridges. Structures are made up of parts arranged in a way that serve a certain purpose. This book looks at natural structures such as plants, animal bodies, mountains, caves, rock formations, and icebergs, the materials from which they are made, and their colors, shapes, and textures. It shows structures made by animals, such as beehives and bird nests. The book also compares natural structures to human-made structures, such as natural bridges and human-made bridges, a ladybug and cars shaped like beetles, a bird and an airplane, and giraffes and construction cranes. This wonderful book with amazing photos will encourage young readers to notice colors and shapes in nature and how they relate to the purpose of structures.
A city is not a habitat just for people - it's a home for animals, too! Children will recognize a lot of animals they see living in their own cities, such as all kinds of pets, raccoons, squirrels, and birds. They may be surprised to see other city residents such as opossums, foxes, coyotes, and skunks. Wonderful images of baby animals help show where animals make their homes within a city, how they find their food, and why they have moved from natural to human habitats.
Children will learn about endemic animals, which can only be found on certain islands. The amazing photographs show the land and water habitats of islands such as Galapagos, Madagascar, Sumatra and Borneo, Komodo, Catalina, and more. Cute baby tortoises, lemurs, orangutans, tigers, Komodo dragons, and island foxes are just of a few of the animals featured. Young readers will learn about food chains and how babies hatch or are born, and how they grow with or without the help of animal mothers.
Not all forests are the same. Children will learn about northern, or boreal, forest habitats and the animals that live in them. Cute baby wolves, cougars, bears, lynx, porcupines, and moose are some of the animals featured. Young readers will learn about food chains, how mothers raise their babies, what kinds of foods different animals eat, and how forest animals survive in cold winters.
Children will learn about river habitats and the animals that live in them and along their banks. Baby beavers, crocodiles, brown bears, otters, swans, geese, tigers, and hippos are some of the animals featured. Young readers will learn about a river food chain, learn which animals are herbivores, carnivores, or omnivores, and discover how baby reptiles, birds, and mammals find food in their river homes.
This enlightening title introduces young readers to clean, green energy sources. Readers will learn how traditional energy sources are harmful to the environment. They will discover that energy can be generated from the Sun, wind, water, and other renewable sources. They will also pick up some practical energy-saving tips they can use in their everyday lives.
This book gives young readers some interesting food for thought! From eating local foods to packing litter-free lunches, readers will be empowered to reduce their personal food prints and make better, Earth-conscious choices about what they eat and drink.
This empowering title inspires readers to make their homes the ultimate green scene! This motivating book explains the importance of practicing environmental stewardship at home. Readers will discover how simple changes, such as using natural cleaning supplies and unplugging video game consoles, can have a positive impact.
Going green is a commonly used term, but what does it really mean? In this overview book, fact-filled text and child-centered examples explain the threats that the Earth faces and encourage readers to be inspired activists for environmental change. Readers will be encouraged to live each day as though it is Earth Day!
Age-appropriate text and vibrant photographs describe environmentally conscious changes that can be made in the classroom and throughout the school. From tips to saving paper to environmentally-conscious crafts, this fact-filled book makes the grade!
This informative title will inspire budding activists to go green in the garden! Accessible text and engaging photographs introduce composting and Earth-friendly gardening. Readers learn how to build a compost bin, what items to recycle in the bin, and how to use compost to start their own garden.
This book tells the story of Tylosaurus, which swam in the prehistoric seas between 87 and 82 million years ago. It was a fierce marine reptile that used its sharp teeth and huge jaws to feed on sharks and other marine reptiles, such as plesiosaurs, as well as fish. A Tylosaurus could grow as long as 50 feet (15 meters) and was a superb swimmer.
Children ask questions to help them understand the world around them. This sense of wonder and curiosity is a trait shared by scientists. This fresh and thoughtful title encourages readers to embrace inquiry as they learn about the kinds of questions scientists ask and how they investigate to find answers.
This book tells the story of Triceratops, a dinosaur that was heavier than a present-day elephant with three large horns on its head and a neck frill. It looked fierce but it was actually just a plant eater. It used its horns to defend itself against predators. Triceratops lived in herds for protection.
This book tells the story of Parasaurolophus, who lived 76 to 74 million years ago during the Cretaceous period. It belonged to a group called hadrosaurs, or duck-billed dinosaurs, named after their flat beak. Parasaurolophus had a long crest that swept back over its head. The crest was hollow, and Parasaurolophus probably used it to make deep honking sounds.
This book tells the story of Stegosaurus, who lived during the Jurassic period between 155 and 145 million years ago. It had large bony plates, which it probably used for temperature control, soaking up the sun, or catching a cool breeze.
This book tells the story of Pteranodon. During the late Cretaceous period, between 89 and 80 million years ago, one of the largest flying reptiles to exist flew in the skies. Its large wingspan and short tail made it very agile so it could turn or dive quickly. Its head could measure nearly six feet (two meters) long and on the back of its head grew a magnificent crest.
This book tells the story of the Woolly Mammoth, an animal that lived during the last Ice Age. Its long outer hair and inner layer of wool helped it withstand the bitterly cold conditions. Huge curved tusks were used to dig for food under the snow and as a powerful weapon against enemies. The Woolly Mammoth weighed up to six-and-a-half tons (six metric tons) and stood ten feet (three meters) tall.
This book tells the story of Spinosaurus, a dinosaur with large jaws, sharp teeth, and a huge sail on its back that stood six feet (two meters) tall. Around 40 feet (12 meters) long, it was one of the largest meat eaters. Spinosaurus lived during the late Cretaceous period around 95 million years ago.
Collaboration and communication are important 21st Century skills and key science practices. Using accessible examples, readers will discover how scientists work together, and share ideas and information. Children also learn how and why scientists record information and put this practice into action by using their own science notebook.