This Exploratorium site presents the ray model of pinhole images. It develops the concepts necessary to understand these images and illustrates them with clear, easy-to-understand diagrams. It explains several examples...
This site, provided by the Center for Science Education at the University of California Berkeley, contains an activity to experiment with shadows and light sources and to understand the relationship between the angle of...
Battery-powered toy trucks and a motion detector are used in this lesson plan to help students conceptually explore motion graphing and terminology of kinematics. The author explains how to do set-up using motion...
This webpage from PBS' NOVA explores the electrostatic forces that cause lightning and engages students with an "Ask The Expert" question-answer set. Different types of lightning are described along with their pictures....
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