Creating magnetic slime is a fun and educational science experiment that combines elements of chemistry and physics.
Here's a simple guide for making magnetic slime:
- White school glue (like Elmer's glue)
- Liquid starch
- Iron oxide powder (magnetic powder)
- Disposable mixing bowl
- Stirring stick or spoon
- Strong neodymium magnets (optional, for interactive play)
- Ziplock bag or airtight container for storage
- In the mixing bowl, combine about ½ cup of white school glue with 1 to 2 tablespoons of iron oxide powder. Adjust the amount of iron oxide based on the desired magnetic strength.
- Mix the glue and iron oxide thoroughly until you achieve a consistent mixture.
- Gradually add liquid starch to the mixture while stirring continuously. Add the liquid starch in small increments until the slime starts to form.
- Once the slime begins to come together, take it out of the bowl and knead it on a flat surface. Continue adding liquid starch as needed until you get the desired slime consistency.
- Bring a strong neodymium magnet close to the slime. You should see the slime being attracted to the magnet.
- Use the magnet to interact with the slime. You can stretch it, mold it, and see how the magnetic properties influence its behavior.
- Iron oxide powder can sometimes be found in craft or science supply stores. It's the same powder used to make magnetic putty.
- Be cautious not to add too much iron oxide, as it can make the slime less stretchy.
- Liquid starch is the activator in this recipe. You can also use borax solution or contact lens solution as an alternative.
- Always supervise children during the experiment.
- If making this slime with very young children, ensure they don't ingest any of the materials.
The iron oxide in the slime becomes attracted to the magnet, giving the slime magnetic properties. This experiment demonstrates how magnetic fields can influence certain materials and provides a playful way for children to explore the concept of magnetism.
Remember to store the magnetic slime in an airtight container or Ziplock bag to prevent it from drying out. If stored properly, it can be used for multiple play sessions.