An examination of elements, particles, atoms, and molecules teaches readers about chemicals and reactions to further their understanding of the world and how it works, offering simple experiments and projects to reinforce the scientific concepts.
Describes experiments featuring air and its properties that demonstrate why hot air rises, how sailboats move, how barometers can tell the weather, and why streamlined objects can move more quickly than unstreamlined ones.
Offers middle readers an introduction to sound by exploring how it is formed and travels, complete with practical experiments, index, glossary and full-color illustration throughout.