The Pre-Level I Physics Student Text is an early elementary text for grades K-3. Pre-Level I Physics introduces students to the fundamental concepts for physics including energy, force, motion, electricity, magnets, and waves.

Developing readers can learn about the destruction that earthquakes can cause, including those that happen under the ocean to form tsunamis, and what precautions can be taken to make us safer. Simultaneous. Get the inside scoop on the power of earthquakes! Take a journey to the center of the earth. Find out what makes the ground shake. Visit the Ring of Fire. Learn more than forty fascinating facts about quakes.

An introduction to the physical characteristics, behavior, and life cycle of birds. Includes instructions for projects.

Covering an immense range of subjects, this series leads children from a general view to a close-up focus on the details of the topic at hand, and includes easy-to-follow projects, new vocabulary words, and suggestions for interesting places to visit and explore. Polar Lands introduce readers to some of the most remarkable places on Earth. Meet the people who live inside the Arctic Circle and the scientists who work in Antarctica. Discover the incredible...

Sid and his friends learn about the world around them by observing, comparing, measuring, and other fun ways to get answers to questions and solve problems. Watch as Sid finds out why his shoes are shrinking, how his grandmother knows exactly when the pancakes are done, how his banana got mushy, and what makes his popsicle melt.

Take a journey of discovery through an erupting volcano, see how snowflakes are formed, find out how to protect our planet-- all in this informative book about the Earth, including projects and activities.

There are many kinds of storms, and they can be scary, but this overview helps readers understand how and why they happen-and shows the importance of weather in different parts of the world and out-of-this world on other planets!