Wednesday, 28 May 2014

Science - observing, note taking and hypothesis making

In Room 17 we have been looking at the experimental process and fair variables.

Our first experiment started when we looked at oil and water.  According to Ashley P's observations they "They don't want to combine, even after we shook them they fell away from each other."



We then looked at a tablet which releases the gas carbon dioxide when placed in liquid.  This release of carbon dioxide made the water "explode" and the gas tried to escape by rising to the surface of the liquid.

Using this prior knowledge we hypothesised on what would happen if we were to mix coloured water, oil and a carbon dioxide releasing tablet.

Here are some of those hypotheses:





This is what actually happened:


The berocca tablet began releasing CO2 (Carbon Dioxide) which rose to the surface and took the heavier water with it, through the oil and it created an AMAZING LAVA LAMP effect.

So, oil and water managed to mix and be friends, if only for a short while.

2 comments:

  1. This is a great experiment guys well done Room 17.
    By Luke in room8

    ReplyDelete
  2. Looks like you had lots of fun during science ! :)

    - Amelia
    - Room 8

    ReplyDelete

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