Shirley Smith Duke

This Title Introuduces Students To The Basic Concept Of Sounds. How Sounds Can Be Heard But Not Seen. How Sound Is A Form Of Energy That Is Transmitted Through Sound Waves Which Travel Through Your Eardrum To Be Heard. How Sound Travels Through Air And At What Rate Of Speed. Useful Examples Are Given Throughout To Help Students Understand The Concept.

Presents ways the planet and humans use plants for food, fuel, and medicine, including fossil fuels, drinking ginger tea for an upset stomach, and how cactus stems provide water for animals.

Matter is anything that has mass, and this title teaches students about how temperature affects the different states of matter and why. Talks about the international system of units and measuring mass and volume.

Introduces equipment and devices commonly found in a science laboratory, including beakers, a hand lens, a microscope, and telescopes, and describes their use.