ISBN-13: 9780761378747 / Angielski / Miękka / 2011 / 40 str.
What are magnets? Why are magnets found inside machines such as televisions, radios, and telephones? What do atoms and the tiny particles that make up atomsprotons, neutrons, and electronshave to do with magnetism? Magnets provide forces that have the power to push or pull other objects. Easy-to-do experiments help readers explore the central principles of magnetism.