Monday, May 3, 2010

Check out this Reaction...

This is an interesting demonstration that kids of all ages can do quickly and easily.

Materials:  shallow bowl, pie plate or dinner plate with high edges, food colors, milk, toothpick and dish soap

  • Fill the bowl or pie plate with milk (you don't need much, about 1 cm deep)
  • Add drops of food color scattered around the edges
  • Dip the toothpick into dish soap
  • Touch the surface of the milk with the soapy end of the toothpick
  • Watch what happens
  • Most Kid Scientists will want to try this again, once they have seen what happens!

What's Happening?
  • First of all, for Little Kid Scientists, the explanation is beyond their understanding and they probably don't care.  I like to use this when my kids are squirrely while I am cooking.  They can sit at the counter and watch the reaction, while I get dinner ready.
  • If Big Kid Scientists are interested in the chemistry involved, then they have their research question to explore.  (Hint...there is a connection to drops of water on a penny)
I didn't post any pictures this time because I didn't want to give anything away.  The Science Mommy would love to post your pictures...send them in!


The Activity Mom said...

Ok awesome! I'm going to try this tonight! =) Thanks!

The Activity Mom said...

We tried this tonight! So cool! B did it 3 times and would have done it more but we were running low on milk. =) I'm posting about it with a link back to you on the 23rd.

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