Corny Slime

Ever wonder why ketchup doesn’t flow easily out of the bottle? Now you know it’s because the ketchup acts just like the cornstarch-water experiment here. More examples of non-Newtonian fluids are ketchup, blood, paint, and shampoo.

We’re going to whip up a batch of non-Newtonian fluid that’s going to act like both a solid and a liquid.  Here’s what you do:

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17 Responses to “Corny Slime”
  1. Aurora says:

    It will keep in the fridge or the freezer!

  2. tsyed says:

    How do you store it if you wanted to keep it?

  3. Aurora says:

    Great tip! Thank you, Shannon!

  4. Shannon Acevedo says:

    No question, but I do have a comment. Try your local thrift store or Goodwill to find a speaker. I often let my son pick out some cheap electronic to take apart. You could probably find something with a speaker for just a few dollars.

  5. Aurora says:

    There really isn’t any other substitute… you have to use a speaker for this particular experiment.

  6. Kimberly Voelkel says:

    What can I use instead of an OLD speaker and a bass?

  7. Mary Legreid says:


  8. Aurora says:

    In the trash – it’s just cornstarch and water, and totally safe to dispose of in the garbage.

  9. Michelle Stevens says:

    How can you easily dispose of the slime?

  10. Aurora says:

    You can color it all you like. And dancing…?

  11. Amy Quimpo says:

    can you color the slime and it will not effect it dancing

  12. Lisa West says:

    My youngest absolutely loved this. He spent 3 hours slowly altering the proportions to see what would make the best slime. He now wants to have a slime birthday party. My husband is so happy about the excuse to play with non-newtonian fluids. 🙂

  13. Aurora says:

    You need an OLD speaker that you can cover with plastic wrap (so it doesn’t soak the paper cone) – use a bass or sub-woofer. Use the 2:1 ratio of cornstarch to water mixture and lay it on top of the speaker cone on the plastic wrap. Plug the speaker into music (unless you happen to have a function generator you can borrow – but that’s pretty rare) and have fun!

  14. Christina Covington says:

    How do we set up the slime so that it will dance?

  15. Miranda Weigel says:

    Very Cool to see the slime “get up and dance!”

  16. Aurora says:

    Make a thin paste using cornstarch and water.

  17. Caroline Wood says:

    How do you make the homemade laundry starch?

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