Oobleck-

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Oobleck-

• Allison Reihe

http//www.science-house.org/CO2/activities/polyme
r/oobleck.html
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Why does this happen?
www.apchem.nagoya-u.ac.jp/image/ouka3.gif
Oobleck is crazy like this because of the
polymers it in. Well, they are trying to move in
the oobleck. If you press this material had and
fast the polymers get tangled up and they cant
move. So therefore, if you press this material
lightly and slowly, the material will move
because the polymers wont get tangled up.
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Purpose
The purpose of the experiment is to find out more
about cornstarch.
www.seed.slb.com/.../cornstarch/images/three.jpg
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Hypothesis

• I think that the Oobleck is going to be a solid
  and a liquid at the same time. I think this
  because of the polymers inside this material.

www.lbl.gov/.../February/assets/water_solid.jpg
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Materials

• The things that you will need are
• a disposable container, like an ice cream bucket
• water
• 1 box of cornstarch
• A spoon
• A pop sickle stick
• a paperclip
• Paper towels
• newspaper

http//sallyrideclub.com/content/20050401.4u2.arti
cle.oobleck.jpg
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Procedure

1. place the newspaper down on a table or flat
   surface
2. place the ice cream bucket on the paper
3. Next, add the box of cornstarch to the bucket.
4. add a little bit of water at first and mix with
   your hands
5. add more water if the mixture is to thick
6. Try different things with the material like
   hitting it hard and fast, touching it softly and
   slowly, setting the paperclip in it, setting your
   hand on the top of the material, and scooping
   some up with a spoon. Also try and squeezing it
   in your hand. Then, just let it sit in your hand
   and see what happens.

http//skiptomylou.files.wordpress.com/2007/03/oob
leck-2.jpg
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Observations

• I observed that Oobleck is a solid and a liquid.
  If you hit the Oobleck hard and fast, the
  Oobleck is hard. If you gently touch the Oobleck
  the material is in a liquid state. Its very
  crazy!

http//tep.mit.edu/events/rush/oobleck1.jpg
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Conclusions

• The purpose of this experiment was to find out
  more about cornstarch. My hypothesis was very
  similar to the outcome of this experiment.

http//cfcp.uchicago.edu/education/explorers/2003w
inter-YERKES/images/ywi2003-74_large.jpg
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• If you are planning on saving the Oobleck, do not
  close the container because mold will grow on it.

http//benspartytimelounge.sprayblogg.no/images/oo
bleck_2_1179427592.jpg