20 Questions: Physical Science

Scientific discovery is powered by questioning minds. This useful collection harnesses kids’ natural curiosity to explore subjects from the 2nd and 3rd grade physical science curricula. Each book opens with an introduction to an important physical science topic. Then, the author raises and answers 20 interesting questions about that topic. Colorful photographs and diagrams will help kids grasp the important scientific concepts introduced throughout the collection. • Accessible text simplifies complex concepts • Supports national science curriculum standards • Use in conjunction with or in place of basal textbook