We were tasked to measure the pH of many types of household liquids such as detergent, soap, shampoo, and even vinegar in this assignment. The goal was to determine if the liquid was acid or base by using red cabbage as a natural indicator to assess this issue. The first step was to put the liquid that we want to know the pH of in a testing tube. Then we prepared the red cabbage powder by mixing it with water. If there are any access particles of the red cabbage we filtered the liquid with paper until it was pure purple. After we got a purple liquid we mixed the red cabbage with the liquid. Then we wait for the color to change from pink to dark pink or blue to yellow according to the pH scale. If the color changed pink it means that it has a low pH which means it’s acid. If it turns green it means it has a high pH which means its base. From the experiment, the most challenging part was determining the color of the liquid. Because sometimes the color is hard to see. The way I overcome this problem was fairly simple. It was by shining a light through the testing tube so I can see more of the color of the liquid. If I can redo this experiment again. I want to test other natural indicators and I want to test other liquids besides household liquids.

In this assignment, my role is as a junior food analyst so I have to examines food and cost of preparing and serving meals , I may select specific food and I choose cinnamon roll and I have to present how to prepare the food to my investors, however my investors are coming from the UK and the US which using different measurement system so I write the recipe using metric system and imperial system and I also put the price of the cinnamon roll using dollar and pound.