These are the procedures of a very fun experiment I conducted in class.

	Procedures
1.	Fold the paper towel into two to make it a 2-ply piece of paper.
2.	Cut it into 3 strips of about 30x20mm and briefly soak them in the cabbage juice.
3.	Remove immediately once the paper turns light purple.
4.	Spread them open and leave aside to dry on the white tile.
5.	Cut your agar block to the following specifications: a.     3 pieces of 5x5x5mm b.     1 piece of 5x5x20mm c.      1 piece of 10x10x10mm
6.	Label your petri dish accordingly based on the solutions that are assigned to you.
7.	Immerse ONE piece of agar of size 5x5x5mm, 5x5x20mm and 10x10x10mmi in lemon juice or baking powder solution.
8.	Record the time it takes for each of the agar to turn uniformly into a different colour in table 1 below.
9.	Immerse the 2 other pieces of 5x5x5mm agar into each of the 2 remaining liquids.
10.	Observe the colour change and record the results in table 2.
11.	Introduce a few drops of each of your 3 solutions onto a different strip of the cabbage juice soaked 2-ply paper towel.
12.	Observe the colour change and record the results in table 2.
13.	Transfer 2cm3 of each of the solution into separate test tubes.
14.	Label the test tube accordingly.
15.	Add an equal volume of cabbage juice to each of these test tubes and record the colour change in table 2. (2cm3 is approximately 2cm in height)