Publisher's Synopsis
Why do objects fall to the ground? What makes explosions possible? How did Earth come to look like it does today? What lies beyond our world? Each of these questions can be answered by delving into the physical sciences. This comprehensive set explores physical science topics that are essential components of the early elementary curriculum and national science standards. Potentially complex subjects, including atoms and wave properties, are carefully presented in an understandable way to prepare elementary students for middle school science and beyond. Each book was also designed and written with young engineers in mind. Colorful photographs help illustrate physical science topics and processes and show scientists and engineers hard at work. Features include: Incorporates topics from the Next Generation Science Standards. Makes tough science topics easy to work with and comprehend. Promotes critical thinking by presenting situations and solutions to engineering problems.
