Nakamura Magnetic Field 3D Observation Box with Alnico Magnet

3-D DEMONSTRATION OF THE MAGNETIC LINES OF FORCE

The Magnetic Field Observation Box is the perfect way for students to observe magnetic force fields. Watch the creation of a magnetic field in 3 dimensions in your hand or via on overhead projector. The sealed acrylic box contains iron filings suspended in a silicon oil solution.

When the cylindrical magnet (included) is inserted into the central chamber, the filings immediately align to create a 3-dimensional field. U-shaped magnets and electromagnets can be used on the outside of the box to demonstrate this magnetic principle.

Forget the mess of iron filings and the constraints of two-dimensional representations of the magnetic field. See for yourself the advantages of this portable wonder. Light-up your overhead projector, put this box on top, and get your students involved in deep discussions about the Earth's magnetic field.

Science Standards & Concepts:
* Study of Magnetic Fields
* Attraction & Repulsion of Magnetic Forces
* Electrically Charged Objects
* Vector Force Fields
* Motion of an Object
* Measurement and Calculations to Describe Speed and Direction of an Object.

Essential Features:
* OHP Friendly
* Includes Alnico Magnet
* Central Chamber
* North-South Magnet Poles
* Durable Acrylic Body
* Clean Experiment
* Silicone Oil + Iron Filings
* Made in Japan

Specifications:
* Observation tank: Transparent acrylic resin, 100mm x 56mm x 56mm (HxWxD)
* Insertion hole for magnet: 8mm diameter x 75mm deep
* Contents: Silicone oil in which iron fillings have been suspended
* Weight: 370g
* INCLUDED accessory: Alnico Magnet (7mm diameter x 50mm long)