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Wednesday 18 September 2013

Science Investigation

This week we had been experimenting with carbonates, bases and acids. We had to write our hypothesis and write our results which these were.







WALT: Observe and report on the chemical reaction that occur when combining substances together.


Experiment - Mix carbonates and bases to acids and record the reaction that follows


Combination
Hypothesis
1. Lemon Juice - Citric Acid
We predicted that the colour would change or lose it’s original colour
2. Raro - Vinegar
We predicted that the vinegar’s colour would over power the Raro’s distinct orange colour.
3. Vinegar - Tartaric Acid
We predicted that the vinegar would turn the tartaric acid into a black liquid like it’s original colour black.
4. Baking Soda - Vinegar
We didn’t really predict because we have done this many times.


Reaction
  1. The lemon juice colour faded after being mixed into the citric acid which then after solidified.
  2. The reaction turned the vinegar into orange coloured liquid
  3. It looked like coke and solidified.
  4. It rose and foamed up due to the chemical reaction.


1 comments:

Anonymous said...

Great observations. I like also the way that you combined scientific language to report about your findings. Well done!

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