Monday, December 28, 2009

Air Pressure - An Experiment

We're on a science kick at the moment.  Here's another easy experiment.

You need a small glass (we used a small empty Gerber container). a piece of cardboard to cover the glass, and water.

I highly recommend doing this over the sink, just in case.

1. Fill your glass completely with water.

2. Place the cardboard over the glass.

3. Hold the cardboard and turn the glass upside down.
Ask your little one to predict what will happen when you remove your hand.

Remove your hand from under the cardboard and be totally amazed that the cardboard stays there.  The air pressure pushes up on the cardboard and keeps it there!


5 comments:

  1. Awesome! The only possible problem I see is my kids then trying to do it again by themselves......

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  2. Very clever! I have starred it in my reader for when my son is a little older.

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  3. Yeah, I so see my daughter trying it on her own. I was just contemplating today our lack of science experiments - you are quite right about their effect on young minds. The minds are rattled and curiousity is born.

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  4. I love your science experiments and the great link you had in an earlier post. We'll definitely be doing this one! (Can you tell I'm catching up on your posts tonight? :) )

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