‘Light and Sound’ explores two forms of energy that are all around us every day. You will learn how light and sound travel as waves. You will discover how these waves of energy move through different
Emphasizes the importance of good health from birth through adulthood and describes what to do to remain healthy, discussing diseases; diet; exercise; oral hygiene; avoiding alcohol, tobacco, and drug
‘Fossil Fuels’ explores the fuels that we use every day. You will learn about everything from how coal forms to the many products made from oil. You will discover how coal, oil, and natural gas help u
