The earliest airplanes all used propellers to fly. Find out how these planes work and how they were used.
This book explains how the caves were formed, and what creatures can be found in the caverns.
In Undercover Animals, early fluent readers learn about animals such as the zebra, octopus, and Arctic hare that protect themselves against predators with camouflage. Vibrant, full-color photos and carefully leveled text engage young readers as they explore the unique adaptations of these undercover animals. An infographic illustrates different methods animals use to blend in, and an activity offers kids an opportunity to extend discovery. Children can learn more about animals with camouflage using our safe search engine that provides relevant, age-appropriate websites. Undercover Animals also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
From a tiny seed to a towering tree, plants reproduce and carry on generations in the most amazing ways. Learn the “how” and “why” about plant reproduction in this intriguing e-book. Filled with engaging diagrams and interesting facts, students will get an in-depth look at how plant reproduction works and why each plant is quite different. High-interest text and vibrant images and photographs fill the pages of this e-book to make learning about plant reproduction fun and interesting. A “Think Like a Scientist” lab activity that supports STEM instruction is included at the end of the book for students to use what they learned in the text and apply that knowledge to the activity. A helpful glossary, table of contents, and index are also included for additional support.
A basic introduction to dwarf planets, such as Pluto, their sizes, compositions, and places within our solar system.
En esta colección, explora la geología y las ciencias de la Tierra con impresionantes ilustraciones en cada libro.
In Cell Phones, readers will learn about the science and technology behind the development of the cellular phone. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the challenges overcome to create the cell phone and how this super science feat continues to improve our communication with the world.
In The Internet, readers will learn about the science and technology behind the development of the Internet. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the challenges overcome to create the Internet and how this super science feat continues to advance technology and communication.
In The First Flight, readers will learn about the science and technology the Wright brothers used to develop the first powered flight. Vibrant, full-color photos and carefully leveled text will engage readers as they learn about the challenges the brothers had to overcome to get a flying machine in the air and how this super science feat continues to help us develop airplanes.
In The Moon Landing, readers will learn about the science and technology behind the first trip to the moon. Vibrant, full-color photos and carefully leveled text will engage readers as they learn about the challenges the astronauts faced and the triumph of the landing.
Meat-Eating Plants introduces readers to meat-eating plants from around the world and the ways in which they trap their meals. From pitcher plants to sticky traps and plants that snap, readers will be fascinated with these plants' abilities to catch prey!
Prickly Plants introduces readers to plants around the world that use thorns, prickles, spines, and bristles to defend themselves.
Photosynthesis introduces readers to the amazing ways in which plants produce their own food and rely on the sun for survival. Readers will be fascinated with these plants' powers!
Poisonous Plants introduces readers to poisonous plants from around the world and the ways in which they defend themselves. From poisonous berries to beautiful, luring flowers, readers will be fascinated with these plants' abilities to trick prey!
Pollinating Plants introduces readers to the amazing ways in which plants pollinate and the insects and natural elements that help them do so.
Healing Plants introduces readers to plants around the world that we can use to help heal. From their flowers, fruits, and leaves all the way to their roots, readers will be fascinated with these plants' abilities to heal!
In this book, readers will learn about the incredible transformation of an egg into a ladybug, and every phase in between. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about every stage of the life cycle of a ladybug.
In this book, readers will learn about the incredible transformation the tiniest joey makes into a full-grown kangaroo. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the incredible stages of the life cycle of a kangaroo.
In this book, readers will learn about the incredible transformation of a larva into a jellyfish and every phase in between. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the incredible stages of the life cycle of a jellyfish.
In this book, readers will learn about the incredible transformation of an egg into a snake, and every phase in between. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about every stage of the life cycle of a snake.
In this book, readers will learn about how rocks are formed, worn down, and then formed again to create the rock cycle. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about how rocks are continually recycled.
In this book, readers will learn how the more than 600 different kinds of igneous rock all form from magma. Vibrant, full-color photos and carefully leveled text will engage readers as they learn about igneous rocks and where an Earth they are found.
In this book, readers will learn how intense heat and pressure changes rock so completely it becomes metamorphic rock. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about the new rocks that are created and where on Earth they are found.
In this book, readers will learn about the incredible transformation caterpillars make into some of the most beautiful flying insects on the planet. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about every stage of the butterfly’s life cycle.
In this book, readers will learn how 130 of the more than 3,000 minerals that exist form gemstones. Vibrant, full-color photos and carefully leveled text will engage readers as they learn more about how gemstones are formed and the qualities for which they are prized.
