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    Home » Oxygen and Air Pressure

    Oxygen and Air Pressure

    November 16, 2012 By Emma Vanstone 4 Comments

    Here at Science Sparks we love a good Science book! One of the funkiest I’ve come across has to be  Cool Science Tricks. It comes with some alka seltzer and a little old style camera film type case which makes it even more exciting to receive as a gift.

    Z, who is 5 has been looking through the book with wonder for the last few weeks. A few of the experiments he recognises as we’ve done them before, but plenty are new as well. I’m going to feature some over the next few weeks so make sure you pop back to check them out.

    My husband and son did this experiment last week when I was out with the girls. Z was so excited he wrote about it in his news at school the next day.

    What you need:

    • a box of matches
    • eight small coins
    • a plate
    • a glass
    • water

    Instructions

    • Pour some water onto a plate and place the coins in a pile in the middle.
    • Light two or three matches at the same time and lay them down on the coins burning. (be careful)
    • Place the glass over the matches, as they burn water will be sucked up inside the glass.
    • We used coloured water to make it a bit easier to see the water rise.
    You can see that we also used a metal container instead of the coins.

    The Science

    The heat of the flame increases the air pressure in the glass which forces some air out. The flame goes out once all the oxygen is used up and the air cools and contracts. The air pressure outside the glass is now higher than inside and so water is sucked into the class until the air pressure is equalized.

     

    Experiment thanks to Cool Science Tricks, which contains 5o fantastic science tricks. We’ve had so much fun looking through the book and picking tricks to do. For more Air Pressure Science Sparks style take a look at these: Coin Poppers, Magic an egg into a jar, Bottle Rocket

    Last Updated on May 1, 2014 by Emma Vanstone

    « 10 Christmas Science Activities
    Thinking of Kerry »

    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

    Reader Interactions

    Comments

    1. Isil

      November 19, 2012 at 8:50 pm

      Looks like an interesting book,thanks for sharing.

      Reply
      • ScienceSparks

        November 21, 2012 at 9:38 pm

        We really liked it!

        Reply

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