Thursday 6 June 2013

Air Pressure Experiment

1) First we filled up our cup of water to the very top.

 2) Then we placed a piece of cardboard on the top and pushed out any air bubbles.
 3) Now we took our hand away from the card and the water stayed in the cup.
4) It is a good thing the water stayed in the cup or I would be soaked!!!! hahaha


Why did this happen??  The water stayed in the cup because the air pressure has force or strength to overcome gravity. The air pressure pushes against the cardboard and stops the water flowing out.

By Alex, Harvey and Stevie
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8 comments:

  1. Anonymous11 June 2013 at 10:32

    Hi Alex and Stevie,
    Awesome experiment!I loved it. I really want to try that experiment, it looks fun. How does the cup stay connected to the cardboard without any support?
    From Holly.

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  2. Anonymous11 June 2013 at 10:38

    hello Stevie and Alex don't drop it on Alex . :). by Shakira :)

    ReplyDelete
  3. Stevie11 June 2013 at 10:40

    Hi Alex Harvey and Stevie. I like how you told us the instructions of how to do the experiment. It look very exciting in the photos. Was it fun?
    By Stevie

    ReplyDelete
  4. Jack11 June 2013 at 11:48

    Hi Alex, Harvey, and Stevie
    I like the picture of Stevie holding the cup above Alex's head. It makes me nervous. Why did you choose this experiment?
    from Jack.
























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  5. Alex11 June 2013 at 11:56

    Hi Holly,
    Thanks for the question. The cup is held up by air presure.
    By Stevie and Alex

    ReplyDelete
  6. Anonymous5 July 2013 at 11:17

    Hi Alex and Stevie that is a really cool pic and it is really funny. from Claudia.

    ReplyDelete
  7. Anonymous5 July 2013 at 11:18

    hi very funny Alex and stevie

    ReplyDelete
  8. Anonymous8 August 2013 at 09:52

    Hi,
    I really liked how the water didn't fall out of the cup.

    How did you make it not fall out?
    Where did you do it?

    GERMAINE ROOM 1 WARRINGTON SCHOOL

    ReplyDelete

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