Modelling the Earth's Magnetic Field

[lp03269]

hey everyone,
this is for a school project, I'm wondering what would be the best for building a model to represent the Earth's magnetic field. it has to be 3D so what would be the best way to represent this? Also it has to do a demonstration what would be a good way of demonstrating the Earth's magnetic field thru the model. Any suggestions would be Greatly appreciated.

 

[Kushal]

use thin iron wires around the sphere. you need to bend them and fix them at the poles.

 

[Kushal]

you can hide a magnet inside the sphere which would have a similar magnetic field pattern.