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Home / Science projects / Slime Recipes
  • Slime Recipes

    Slime Recipes

    Homemade Slime

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    This is a fun and easy slime to make. Make it with white glue for opaque slime, or glue gel for translucent slime.

    What You Need:

    • Elmer's white glue or Elmer's school glue gel
    • Borax (find in the laundry detergent aisle of the store)
    • Water
    • Two bowls
    • Food coloring (optional)

    What You Do:

    1. In one bowl mix 1/2 cup (4 oz) glue and 1/2 cup water. Add food coloring if you want colored slime.
    2. In the other bowl, mix 1 teaspoon borax with 1 cup water until the borax is dissolved.
    3. Add the glue mixture to the borax solution, stirring slowly.
    4. The slime will begin to form immediately; stir as much as you can, then dig in and knead it with your hands until it gets less sticky. (No one makes slime without getting a little messy!) Don't worry about any leftover water in the bowl; just pour it out.

    What Happened:

    The glue has an ingredient called polyvinyl acetate, which is a liquid polymer. The borax links the polyvinyl acetate molecules to each other, creating one large, flexible polymer. This kind of slime will get stiffer and more like putty the more you play with it.

    Store it in a plastic bag in the fridge, to keep it from growing mold.

    Super Slime

    This slime is similar to the one above, but creates a less rubbery and more transparent slime. This is the real gooey deal! (This slime is non-toxic, but still keep these chemicals away from unsupervised children and wash your hands after playing with the slime.)

    What You Need:

    What You Do:

    1. Make a 4% solution of polyvinyl alcohol: Stir 1.5 teaspoons (approx. 4g) of PVA into 1/2 C (approx 100 ml) of water in a large microwave-safe bowl. Cover the bowl and microwave for 1 minute, then stir. Microwave another 30 seconds and stir. Continue until all the PVA is dissolved. A slight film may have formed on top; you can remove that with a spoon. You can add food coloring if you want colored slime. Allow the solution to cool.
    2. Make a 4% borax solution by stirring a little less than 2 teaspoons (approx. 4g) of Borax into 1/2 cup of water.
    3. Pour the cooled PVA solution into a ziplock bag and add 2 teaspoons (10ml) of the borax solution.
    4. Zip the bag and knead it until the chemicals are mixed into slime. Then scoop it out and play with it. 

    What Happened:

    While water is a liquid made up of individual H2O molecules, polyvinyl alcohol is formed of long chains of connected molecules, making it a liquid polymer. (The term polymer comes from the words for "many parts.") The borax acts as a "cross-linker," linking the individual PVA chains to each other so they connect to form a blob of slime. It does this linking job when the borax molecules form hydrogen bonds with molecules present in the PVA chains. (The partial positive charge of hydrogen atoms attracts the partial negative charge of oxygen atoms.) Since hydrogen bonds are weak, they can break and reform as you play with the slime or let it ooze on a flat surface.

    Your slime will last for a while if you seal it in a plastic bag and keep it in the fridge.

    Other fun home recipes:

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Comments




By: lilttleflower
Date: Nov 29, 2014

Does anyone know how to remove stains in textile from the slime?


By: Tyla
Date: Nov 24, 2014

wrong its a cup of water not a half cup


By: abdifitah
Date: Nov 20, 2014

i love slime


By: Nevaeh
Date: Nov 13, 2014

I am doing a project on this and I got the material from this web site


By: Sofia Soberanis
Date: Nov 04, 2014

cool!!!!!!


By: jackson
Date: Oct 31, 2014

tell me why


By: jackson
Date: Oct 31, 2014

how do they make slime


By: jackson
Date: Oct 31, 2014

how das water and glue and borax make slime


By: perrin williams
Date: Oct 29, 2014

SO AWSOME


By: Idara Eno
Date: Oct 28, 2014

i am a 7th grade girl looking for a science fair project and this website really helped me with my research. I really liked how you added some information on HOW the goo is formed, and thank you for giving me some resources!