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Lesson Plans

Goop, Gloop, Glop, Flubber, and Fun

From: maryannkohl (maryann)
Date: Wed Jul 05 2000 - 16:30:53 PDT

  • Next message: maryannkohl: "Tin Plate art"

    Here are a bunch of recipes that are fun for summer, or any time.
    Described as --- physics-defying "stuff" to make, play with and learn
    from. I like the scientific explanations for some of them. Someone sent
    these to me, and I don't know the authors, but the ideas are in many
    books in one form or hope you find something fun to try. I
    haven't tried them all myself, but they are!!

    Borate solution:
    2/3 cup warm water
    1 1/2 teaspoon powdered Borax
    3 drops food coloring
    Mix together in a 1 cup measuring cup using a wooden spoon Glue Solution:
    3/4 cup warm water
    1 cup white school glue
    Mix together in a mixing bowl using a wooden spoon. Pour the borate
    solution into the bowl with glue solution. Use your hands to gently lift
    and turn the mixture until only one tablespoon of liquid is left. Flubber
    will be sticky for a moment or two. After the excess liquid has dripped
    off, Flubber is ready. Store in a plastic bag in the refrigerator. When
    you are through, discard in a waste can. DO NOT try to wash it down the
    sink. If it dries on carpet or clothing, cover it with a cloth soaked in
    vinegar to de-gel it, then wash the area with detergent and water.

    **** GLARCH
    Measure 1/2 cup liquid white school glue into bowl. I get the best
    results with Elmer's School Glue. Measure 1/4 cup Sta Flo liquid starch
    into the same bowl. Mix together with a wooden spoon. After the substance
    becomes too thick to use the spoon, continue mixing with your hands. This
    works quicker with warm hands. Glarch may be stored in a plastic bag.
    Wash all supplies.

    **** OOBLECK
    Measure 1 1/2 cups of cornstarch and put in a pie pan or container If you
    want a color of Oobleck add the coloring to the water first. Then
    gradually add approximately 1/2 cup of water to the cornstarch. Stir well
    (this will take some time). Add small amounts of more water or cornstarch
    until you get a mixture which 'tears' when you quickly scrape your finger
    through it AND THEN 'melts' back together again. Oobleck is often
    referred to as a 'non-Newtonian' substance because it does not behave as
    Newton's Third Law of Motion states; for every action, there is an equal
    and opposite reaction. Applying this principle, you would expect Oobleck
    to 'splash' when you 'smack' it with your hand. (Smacking is the action,
    splashing is the reaction.) However, when you try this out. Oobleck does
    not splash, in fact, it becomes a solid substance for a few moments. Why?
    Scientists explain this as follows. Uncooked corn starch particles are
    structured in both crystalline and noncrystalline arrangements. When
    slowly mixed with water, the non crystalline
    structures of corn starch absorb most of the water. When you smack or
    stir it rapidly, you increase the temperature and pressure on the mixture
    which causes more non crystalline structures to form. These new
    noncrystalline structures absorb more water and the mixture becomes
    thicker:hence the appearance of a solid. When you discontinue the
    pressure, the number of noncrystalline structures decrease and water is
    released, creating the 'soupy' mixture.

    Put 1/3 cup warm water into a paper cup. Use a stirring stick and add 1/4
    teaspoon guar gum into the water. Stir until mixed and the guar gum is
    dissolved. Optional:add 2-5 drops of food color. Mix thoroughly. While
    stirring, add about 2 tablespoons 4% borax solution to the guar gum
    mixture. Once the mixture has jelled, remove the Slime from the cup and
    knead it in your hands. Place the Slime in a zipper-type plastic bag to
    prevent it from drying out. A few drops of Lysol can be added to the
    Slime to minimize the formation of mold and extend the lifetime of the
    Slime. You can get guar gum from Flinn Scientific.

    Put 2 tablespoons 4% polyvinyl alcohol solution into a paper cup. Add 2-3
    drops of food color. Mix Pour in 4% borax solution into the cup of
    polyvinyl alcohol solution. Stir constantly while the borax solution is
    being added. Once the gel has formed, remove it from the cup and knead it
    in your hands. Place the Slime in a zipper-type plastic bag to prevent it
    from drying out. A few drops of Lysol can be added to the Slime to
    minimize the formation of mold and extend the lifetime of the Slime.

    Experiment with each of the Slimes by squeezing it; forming it into a
    ball and throwing it onto a tile or linoleum floor; by pulling I gently
    and then quickly; and by pressing the putty on top of your name written
    with a water-soluable, felt-tip marker. Note: Differences: The Guar Gum
    Slime is less viscous (more runny) and can be stretched further before
    breaking than the Polyvinyl Alcohol Slime. Similarities: Both slimes are
    clear and colorless (if food color is not added), can be molded into
    different shapes, will flow from a funnel over a period of time, will
    bounce (to a certain degree), and will become flat if left sitting on a
    flat surface.

    The following recipe is from Paula Lee
    1 cup flour
    1T vegetable oil
    2T hand lotion
    1/2cup salt
    2 t. cream of tartar
    1 c water
    food coloring
    Mix. For kids crafts.

    The following recipe is from the Mudworks book.
    **** FUN DOUGH
    1 cup corn starch
    1 1/2 cup baking soda
    food coloring
    Add water to dry ingredients to desired texture and consistency.
    Color with food coloring.




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