Wednesday 8 May 2013

What is matter?

Today we asked the question what is matter? We learnt that matter is anything that takes up space (has mass) and weighs something. We explored the properties of air and discovered that air is matter.

These are a couple of the experiments that helped us see that air takes up space.




We sucked all the air out of the bag which shrink wrapped Breanna and Lars. All the air on the outside moved in to fill the space. Finn tried to blow up a balloon in a bottle but couldn't because the air inside the bottle couldn't move away for the balloon to expand. Also here is a link to the smoke rings video we watched which shows air movement. http://www.youtube.com/watch?v=-VL0M0jmu7k 


Through this experiment we observed that air does weigh something. We created some balanced scales and then let the air out of one balloon. As you can see, air does weigh something.
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2 comments:

  1. Anonymous8 May 2013 at 20:23

    Wow room 7, what cool experiments! What did it feel like to be inside the bag as all the air was sucked out? I bet it felt strange! What did you learn from completing these experiments? Can you explain why air is matter? You can’t see air so how can it be matter?
    From Mrs Gunn and room14

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  2. Unknown9 May 2013 at 14:38

    Our experiments were very fun and exciting. Getting inside the bag and getting the air sucked out was pretty scary but it was also fun. I learnt that air does actually weigh something but I was also wondering does polluted air weigh more?.
    Amy.

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