Jeff Moore, a high school student, has trouble controlling his emotions. An expert in the subject (though it's never explained who he is or what he's...
Shows how the spectroscope, radio and optical telescopes are used to provide information about the origin of comets, meteors and planetoids. Special...
Follows Don as he sees different kinds of rocks at a granite quarry, sandstone cliff and museum. Demonstrates the effects of water, heat and pressure...
Uses historic English locales, maps, paintings and animated scenes to reconstruct the life and career of Sir Francis Drake. Stresses his achievements...
Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation...