Solar energy is explained. Included in the book is where it comes from, who uses it, and the positive and negative benefits of using it.
Computers are the focus of this book. A timeline of the invention of the computer provides a clear explanation of how our world has changed since the advent of this important invention.
Clear definitions supported by every day examples and easy hands-on activities introduce young scientists to inclined planes.
Eco-friendly energy is explained. The most current information is provided while establishing the understanding that it does not take much to make the world a better place.