Today (9/10/19) we went to the lab and tested the PH of different substances with red cabbage as the indicator. I worked with Mora Sturla, Nacho Ockeki, Sofia Moyano and Santino Yacobitti.
We filled 3 test tubes with different liquids and then we put 10ml of red cabbage inside each one of them. We had to wait a few second so that the color would change. For example, in the test tube number 2, at first the liquid was green, but then it turn into yellow.