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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 another...so hope you find something fun to try. I
haven't tried them all myself, but still...here they are!!
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.
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.
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.
**** GUAR GUM SLIME
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.
**** POLYVINYL ALCOHOL SLIME
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.
**** SLIME OLYMPICS
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
The following recipe is from Paula Lee pmlee.us:
**** LOTION PLAYDOUGH
1 cup flour
1T vegetable oil
2T hand lotion
2 t. cream of tartar
1 c water
Mix. For kids crafts.
The following recipe is from the Mudworks book.
**** FUN DOUGH
1 cup corn starch
1 1/2 cup baking soda
Add water to dry ingredients to desired texture and consistency.
Color with food coloring.
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