Neutralisation
In Science we're doing an experiment to observe neutralisation. We're going to be using a Universal Indicator to see whether something is a base or acid. A pH scale is a scale that shows if something is an acid, base or neutral, and how strong it is. The colours range from red to blue, with a green colour in between that means its neutral. The colours and indicated by numbers and the numbers go from 1 to 14. How strong the colour is (eg. a dark red compared to a lighter red and vise versa with the blue) shows how strong of an acid it is if it were an acid. A strong acid would be darker red and a weaker acid would be a lighter red. All acids contain Hydrochloric Acid and an acid is something that is often sour and can corrode (eat away at) something. Bases contain Sodium Hydroxide. Some examples of bases are soaps, tooth paste and cleaning products since you want to get rid of the germs and bacteria but not corrode the actual thing itself.
We completed the experiment and by mixing Universal Indicator, Sodium Hydroxide and Hydrochloric Acid we created bases, acids and neutral mixtures (we ended up using all of what was left from the universal indicator). To get a stronger base we didn't add much or add of the hydrochloric acid and just used the sodium hydroxide and universal indicator. Vise versa for creating an acid. For a neutral mixture we added a bit of both plus the universal indicator. Here are some photos from our experiment:
Well done Lauren! You explained your observations and why they occurred, and included a summary of what you've been learning. Awesome
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