Wednesday

We learned about Acids and Bases today. We watched a video on youtube to teach about acids and bases. http://www.youtube.com/watch?v=RF40cI2O16U
We learned that acids turn blue litmus paper red, acids are sour and they neutralize bases. Bases turn red litmus paper to blue, is slippery and bitter to the taste.

Then we went into the lab. We had a pH solution made of the water from boiled red cabbage. We poured different substances into the pH solution to see if they were acids, bases or neutral. It was especially interesting to watch Tide detergent change the purple liquid to yellow and orange juice changed the purple liquid red. Students would guess which color the pH solution would turn. They filled out a sheet to help them learn to recognize the pH scale.