"Budding scientists will love learning about the properties of magnetism by planning and carrying out investigations that explore how magnetic force is affected by distance, strength, and size"--Provided by publisher.
Bibliography, etc. Note: Includes bibliographical references, Internet addresses and index.
Formatted Contents Note: Magnetism is a force -- How magnets work -- Magnetic fields -- Let's investigate: working at a distance -- Magnetic materials -- Making magnets -- Electromagnets -- Let's investigate: electromagnetic challenge -- Machines using magnets -- Magnets on the move -- Let's investigate: floating pencil -- Investigate more -- Science challenge tips.