The Oceans, Lakes, and Rivers book takes readers on a journey through Earth's amazing water resou...

The Water Pollution book helps children understand how contamination affects our water supply. Re...

The Fog book introduces students to this mysterious weather phenomenon that can blanket entire ci...

The Clouds book takes young readers on a journey through the sky to explore these fascinating for...

The Precipitation book introduces young readers to water falling from the sky in all its forms. F...

The Clara Barton book takes readers through the inspiring life of a woman who helped wounded sold...

The Glaciers book explores massive formations of ice and how they shape our planet through moveme...

The Snow book invites young readers to discover the magic of frozen precipitation that falls when...

The Rain book takes children through the fascinating journey of precipitation from clouds to grou...

The Henry Ford book introduces children to the inventor who revolutionized transportation with th...

The Sunshine book explores the powerful energy that reaches Earth from our closest star. Young re...

The Water Power book explores how flowing water creates electricity through renewable energy. Chi...

The Lightning book reveals the incredible power of electricity in the sky during thunderstorms. Y...

The Water Cycle book shows how water moves around our planet in an endless journey. Young readers...

The Helen Keller book shares the extraordinary story of a girl who became blind and deaf as a you...

The Hail book explores the powerful ice storms that can fall from thunderstorms without warning. ...

The Brain book introduces young readers to the amazing control center of the nervous system. This...

The Ruby Bridges book tells the brave story of a six-year-old girl who walked through angry crowd...

The Kidneys book takes readers inside these powerful organs of the urinary system. These bean-sha...

The Wind book takes young readers on a journey through the invisible force of air movement all ar...

The Tornado book introduces students to one of nature's most powerful and destructive severe stor...

The Bill Gates book introduces young readers to the man who founded Microsoft and changed how peo...

Did you know that an ant can lift 50 times its body weight? Ants use special feelers on their hea...

Did you know that sharks have many rows of teeth? Sharks do not have bones like most other fish. ...

Did you know that no two zebras have the same stripes? Zebras sleep standing up. Learn more about...

Did you know that ferrets have long whiskers next to their mouths? Ferrets use these whiskers to ...

There are more than 15,000 active volcanoes on Earth. Kilauea, in Hawai'i, has been erupting nons...

The simplest machines are the lever, wheel and axle, pulley, ramp, and screw. The electric motor ...

Florida produces the most citrus fruit of any state in the United States. Besides oranges, the st...

Many governments around the world are encouraging the use of conservation agriculture. Simple tec...

A persuasive paragraph is a group of sentences used to convince someone to believe or do somethin...

Table salt is a type of crystal that people use every day. The smallest crystal in the world is m...

Wedges are used to separate objects. Some types of wedges, such as chisels, have been in use for ...

Different tools can be used to measure length. These include rulers, tape measures, and yardstick...

Did you know that sound is only made when objects vibrate? Vibrating objects create sound waves. ...

Did you know that the letter x can start many words? Many names start with an uppercase X. Learn ...

Did you know that mechanics work in auto repair shops? Mechanics make sure that vehicles are safe...

¿Sabías que hay cinco océanos en la Tierra? Ocupan más de la mitad de la superficie terrestre. Ap...

Did you know that a basketball hoop is 10 feet off the ground? The first game of basketball was p...

Romance languages, such as French and Spanish, grew out of the Latin language spoken in ancient R...

From species and habitats to organisms and food chains, Ecosystems explores the basic science con...

All living things on Earth must eat something in order to survive. Most plants use photosynthesis...

Approximately 99 percent of all the electricity in Norway comes from hydropower. There are close ...

Technology is the practical use of scientific knowledge. Technologists are scientific inventors w...

About 90 percent of children use the internet to do homework. While an important resource, the in...

Did you know that people in small towns often walk where they need to go? They do not need to dri...

¿Sabías que las praderas ocupan gran parte de la Tierra? Las praderas tienen suelos profundos que...

The frightful tales in R.L. Stine's Goosebumps series have made him one of the world's best-selli...