Uploaded June 2017 | Updated September 2026, 2 weeks ago
Instead of sand, the Magnetic Sand Timer is filled with black iron filings. Set the device on its stand and watch the metal grains arrange themselves into a beautiful, spiked sculpture. What's the secret? A powerful rare-earth magnet is hidden in the base. Each time you turn it over, a different pattern is formed as the ferrous material is drawn into the magnetic field. Available at teachersource.com/product/magnetic-sand-timer/magnetism-fields
Instead of sand, the Magnetic Sand Timer is filled with black iron filings. Set the device on its stand and watch the metal grains arrange themselves into a beautiful, spiked sculpture. What's the secret? A powerful rare-earth magnet is hidden in the base. Each time you turn it over, a different pattern is formed as the ferrous material is drawn into the magnetic field. Available at teachersource.com/product/magnetic-sand-timer/magnetism-fields
