Stille, Darlene R

Explains how numerous science concepts are at work during gym class, looking at forces and energy, muscles, balance, and more; and provides instructions for testing some of these concepts.

A simple introduction to the space shuttle, describing its equipment, parts, uses, and journey into space.

A simple introduction to different kinds of ships and how they are used.

A simple introduction to different kinds of underwater vehicles and how they are used.

This book uses news stories and everyday applications to explain the science behind pandemics.

This book uses news stories and everyday applications to explain the science behind ultraviolet rays.

This book uses news stories and everyday applications to explain the science behind genetic engineering.

Introduces the planet Mars, exploring its atmosphere, composition, and other characteristics and looking particularly at how humans learned about the only planet that can be seen clearly from Earth.

Identifies some of the natural resources that exist in the world, describes the difference between renewable and nonrenewable as related to natural resources, discusses the need to conserve fossil fuels, and examines alternative energy sources.

Presents the lives of our United States Presidents from 1890 through 1930 like Theodore Roosevelt, William Taft, Woodrow Wilson, Warren Harding, and Calvin Coolidge. Describes their political views, their family life, achievements, and legacy.