The universe. The sun, our star. Shadows in the heavens. The family of the sun. The eart. climates of the past. Eart´s crust. Eart´s flattened areas. Life. The struggle for life. bilogical rhythms and clocks. Plant life. The fungi. The vital processes of plants. The bacteria. Mosses, ferns and their allies. The algae. The seed plants. Animal life. Grasshoppers and their kin. Butterflies and moths. The true bugs. Filies and mosquitoes. Wing-sheth hordes. Ants, bees and wasps. Man. The bones of the body. the muscular system of man. population problems. The life stream. the circulatory system. Health. Air pollution. Mathematics. Form points to solids. Matter and energy. metals and nonmetals. Simple machines. Cataysis. Chromatography. How atoms combine. What is heat? Industry. Building a skycraper. science3 at work for man. The story of glass. Transportation. Air-cushion vehicles. Communication. An introduction to radio. Science through the eges. Science grows up (1600 - 1765). Projects and experiments. Collecting insects. Keeping an ant colony.