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Is it hard or soft?

Helen Mason (author)

Publisher: Crabtree Publishing Company ISBN: 9781427190277

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.

Is it natural or human-made?

Helen Mason (author)

Publisher: Crabtree Publishing Company ISBN: 9781427190246

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.

What is symmetry in nature?

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194978

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.

What are natural structures?

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9780778790365

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.

Baby animals in cities

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191830

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.

Baby animals in northern forests

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191847

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.

Baby animals in rivers

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191854

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.

Baby animals on islands

Bobbie Kalman (author)

Publisher: Crabtree Publishing Company ISBN: 9781427191823

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.

Pressing Down: The Lever

Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175281

Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work - lift and lower, separate, and open.

Pulling Up: The Pulley

Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175298

Pulling Up explores the benefits and uses of the pulley. This clever device uses rope wound over a grooved wheel to help lift heavy loads. RobbO and RobbEE use a pulley to remove the engine from their car.

Rolling Along: The Wheel and Axle

Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175304

Rolling Along explores the benefits and uses of the wheel and axle. RobbO and RobbEE build a cart to make it easier to move a heavy load, and learn how the wheel and axle are also used for lifting and turning.

Sloping Up and Down: The Inclined Plane

Felicia Law, Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175311

Sloping Up and Down explores the benefits and uses of the ramp. RobbO and RobbEE learn that a ramp is called an inclined plane. They discover that ramps are used for building stairs and escalators, and were even used as far back as ancient Egypt to build the pyramids.

Splitting Apart: The Wedge

Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175328

Splitting Apart explores the benefits and uses of the wedge. RobbO and RobbEE need to build a wedge-shaped machine to move the snow piled outside their workshop. They find lots of other uses for a wedge, too.

Winding Around: The Screw

Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427175335

Winding Around explores the benefits and uses of the screw. RobbO and RobbEE learn how to hold materials together using a screw, and how to use it to lift up loads and raise water.

Eating Green

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194367

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.

Going Green at School

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194374

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!

Green Energy

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194381

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.

Green Gardening and Composting

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194350

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.

Living Green at Home

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427194398

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.

What Does it Mean to Go Green?

Molly Aloian (author)

Publisher: Crabtree Publishing Company ISBN: 9781427105585

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!

Question It!

Azza Sharkawy (author)

Publisher: Crabtree Publishing Company ISBN: 9781427177056

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.

Share It!

Azza Sharkawy (author)

Publisher: Crabtree Publishing Company ISBN: 9781427177094

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.

Parasaurolophus

Gabe McIntosh, Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197030

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.

Pteranodon

Karen Carr, Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197047

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.

Spinosaurus

Chris Scalf, Gerry Bailey (author)

Publisher: Crabtree Publishing Company ISBN: 9781427197061

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.