This introductory kit has over 100 experiments to educate young scientists about phenomena in biology, chemistry, and physics, and it is made by the renowned 175-year-old German publishing house Franckh-Kosmos Verlags-GmbH (translated by Thames & Kosmos). The experiments provide a broad introduction to core science disciplines and illustrate how the disciplines relate. Experiment topics include acids, heat, sound, magnetism, electricity, optics, plants and animals, colors, chemical reactions, and more. The kit includes all necessary components except for a few commonly available household items and two 4.5-volt 3R12 batteries, and comes with a 112-page guide book that clearly illustrates the experiments, discoveries, and principles of each project. Ages 10 and up. Box 14 1/4" H x 3 3/4" D. (3 lbs.)