Teaches how light travels, how to identify different forms of energy, the reflection and absorption of light, and how to identify different sources of heat energy. Also teaches what causes sound energy, what causes day and night, and how shadows help people tell time. Focuses on dinosaurs and their physical features, fossils, pollution, endangered species; solids, liquids, and gasses; and the traits of mammals, fish, birds, reptiles, insects, and spiders. View TEKS. View sample of course guide.