Excellerations Iron Filing Cases - Set of 12

SET INCLUDES: Lightweight iron filings safely sealed inside sturdy plastic case. Set includes 12 cases.,HOW TO USE: Children use magnets to easily move and manipulative the filings.,EDUCATIONAL VALUE: Great for teaching magnetic poles and for experimentation with magnets.,QUALITY: Durable plastic cases are designed for long lasting use in classroom, home, daycare or preschool.,OBSERVATIONS: Kids can make observations and ask questions to determine cause and effect relationships in magnetic interactions between two objects in/not with each other.