Where does bad light end up? In a prism! The presentation covers light, mirrors, lenses, and the structure of the eye. It also provides explanations of reflection, refraction, concave and convex mirrors and lenses, and a comparison of...

Quiz your 3rd graders on why we have regions. This regions quiz includes 16 questions on why and how we group areas into regions based on physical features, culture, politics or religion. A class discussion on technology completes this...