Creating a mini magnetic field display in an outdoor plant box is a fun and educational project that combines gardening with basic physics. Here’s a step-by-step guide to help you achieve this unique setup:

1. Materials Needed:

- A small outdoor plant box (wooden or plastic)

- Fine iron filings or magnetic sand

- A strong neodymium magnet

- Clear adhesive or epoxy resin

- A small plastic or glass cover (optional)

2. Prepare the Plant Box:

Ensure the plant box is clean and dry. If using wood, consider sealing it to prevent moisture damage. Fill the box with soil and plant small, hardy plants like succulents or herbs.

3. Create the Magnetic Display:

Place the neodymium magnet in a discreet spot inside the box, such as buried slightly under the soil near one edge. Sprinkle iron filings or magnetic sand over the soil surface near the magnet. The filings will align along the magnetic field lines, creating a visible pattern.

4. Secure the Display:

To prevent the filings from scattering in wind or rain, lightly spray them with clear adhesive or cover the area with a small plastic or glass sheet. This will keep the pattern intact while allowing visibility.

5. Maintenance:

Over time, the filings may shift or oxidize. Gently stir them with a stick or add fresh filings to refresh the display. Keep the magnet dry to maintain its strength.

This project not only adds a scientific twist to your garden but also serves as a great conversation starter. Experiment with different magnet placements and filing densities to create varying patterns!