Laser Jet Toner: a Magnetic Fluid
Grade Level: 7th to 9th; Type: Physical Science
In this experiment, you will experience a magnetic fluid as it moves, bubbles, and forms unique shapes.
- Why does the fluid contort into different shapes?
- Are there other fluids that are magnetic?
- What makes them magnetic?
- Magnets of varying size and strength
- Laser jet toner (Ferro fluid)
- Pure vegetable oil
- Stirring stick
- Long, clear bottle, jar or flask
- Pour 50mL of toner into the beaker.
- Pour in 30mL of pure vegetable oil.
- Stir it to a nice thin consistency. (If it is too thin, it might not work properly.)
- Pour the mixture into the long container.
- Touch a magnet to the container. Observe what happens to the fluid. (It should move with the magnet and contort into intriguing shapes.)
- Experiment with using other magnets. See what happens when you drop the magnets into the liquid.
Terms/Concepts: magnetism, magnetic fluid
References: Magnetism: http://www.factmonster.com/ce6/sci/A0831162.html
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state’s handbook of Science Safety.