Tuesday, March 13, 2012

~Home Science 101~


Here's a peek at our Science Discovery Board.
Experiments completed along with their own vocabulary words. 
And yes, there will be a test (but not for you).



And our word for this lesson?

COLLOID:
a special kind of mixture in which particles of one type of material 
are suspended in another kind of material.
(the straightforward  fourth grade definition)


In other words?


Blue Goo.


COLLOID:
how to keep a fourth grader happy and busy in the name of science
(the mom definition)




Want to make your own colloid?
All you need is:

1 cup cornstarch
1/2 cup water
blue (or other color) food coloring
a medium bowl
someone willing to get their hands dirty in the name of science

1. Put the cornstarch into the bowl.
2. Pour in the water. Add a few drops of food coloring to the mixture.
3. Using your hands squish the cornstarch and water together. It will get messy but keep you mesmerized.
Is it a solid? Is it a liquid? NO- it's a colloid! Now don't you feel smart? ;)

Cheers!

5 comments:

  1. ooh, i need to try that with my boys!

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  2. that looks like fun!
    love jooles x

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  3. Love that dimple in the cheek. You can tell The Younger that I didn't learn about colloid until adulthood. I had to research the word so I knew what colloidal silver was. Lately I saw colloidal oatmeal in skin care products and wondered what THAT was all about (Oats do not sink in water due to the colloid action of the particles of grain dispersing through the water.)

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  4. Oh I just know Miss Emma would love to make that! I'm saving all kinds of ideas up for the summer doldrums!

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