How to make flubber with liquid starch

Written by ruth o'neil
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How to make flubber with liquid starch
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Flubber is similar to playdough in that kids can make it and play with it for hours of uninterrupted fun. Flubber is more rubbery and slimy than playdough and while playdough uses flour and water, you make flubber using a mixture of water and cornflour. Using liquid starch makes recipes for flubber almost foolproof. Liquid starch also means you do not have to remove any lumps from the dry starch, making your flubber very smooth.

Skill level:

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Things you need

  • Plastic container
  • Measuring cup
  • White glue
  • Food colouring
  • Wooden craft stick
  • Liquid starch
  • Parchment paper

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  1. 1

    Pour 1 cup of glue into the plastic container.

  2. 2

    Add 2 to 3 drops of your chosen food colouring to the glue. Mix the colouring thoroughly into the glue using the wooden craft stick.

  3. 3

    Pour 1 cup of the liquid starch into the glue and food colouring mixture. Mix well. Start mixing with the wooden craft stick and use your hands once the mixture gets thicker and harder to stir.

  4. 4

    Put a piece of parchment paper on your counter or work surface to protect it from the food colouring.

  5. 5

    Place the flubber mixture on the parchment paper and knead it until it is no longer sticky. Knead until your flubber becomes rubbery and smooth.

  6. 6

    Add small amounts of the liquid starch, about a teaspoon at a time, if the mixture does not seem to be firming up.

  7. 7

    Stir or knead with your fingers until the ingredients come together to form a wet, slimy mass.

Tips and warnings

  • Make several batches of flubber when it is party time at your house. Put small amounts of the flubber in airtight containers and give them to party guests as favours.
  • Make flubber in your science class to show kids that flubber is neither a solid nor a liquid. They students can make their own flubber to take home and play with. The kids can then stretch it, bounce it and squish it to determine its scientific properties.
  • Some recipes for flubber or gak use Borax, which is a chemical cleaner. If you use this ingredient in your flubber, make sure you kids are old enough to know not to eat it or put their hands in their mouths after playing with it. Make sure the children wash their hands after putting the flubber away.

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