This is an outstanding science kit. Inside this fascinating set are 33 engaging experiments and games and a 48-page full-colour manual crammed with instructions, ideas and interesting facts. There are ring magnets, ball magnets, block magnets, bar magnets and a horseshoe magnet, plus iron powder, a compass, plastic chips and more. Experiment to discover which materials are magnetic and which aren\'t. Learn about magnetic poles and magnetic fields. Discover how the Earth behaves like one giant magnet, and how we use this knowledge to find which way is north. Make invisible magnetic fields and build an electromagnet to learn how electricity relates to magnetism. Educational and entertaining, we highly recommend this fantastic set for all curious minds. Encourages scientific experimentation Builds problem-solving skills Awards Good Toy Guide Dimensions: 33 x 23 x 7 cm Manufacturers recommended age: 8+ The Magnetic Science kit requires 1.5-volt AA Batteries