Includes: Simple machines; Sound; Storms; Strange Plants; The Amazing Silkworm; The Great Pyramid; The Olympics; The Sun; The Yard Sale; Traveling Across Australia; Time Lines: 1900-2000; Up the Amazon; Using Your Five Senses; Bicycles; Animal Hiding Places; Divers of the Deep Sea; Exploring Tide Pools; Gold; Light; My Balloon Ride; My Town at Work; On Safari; Race to the Pole; Rice; Sand; Volcanoes; Alexander Graham Bell and the Telephone; The Story of the Pony Express; Harvest Festivals; See the U.S.A.; Using Your Five Senses; Kitchen Science; Changes All Around Us.