Here are some ideas for activities involving your liquid magnet ferrofluid. You can:
- Use a strong magnet to float a penny on top of the ferrofluid.
- Use magnets to drag the ferrofluid up the sides of a container.
- Bring a magnet close to the ferrofluid to see spikes form, following the lines of the magnetic field.
Explore the shapes you can form using a magnet and the ferrofluid. Store your liquid magnet away from heat and flame. If you need to dispose of your ferrofluid at some point, dispose of it the way you would dispose of kerosene. Have fun!
Here are some references and resources for more information about ferrofluids: