Apparatus
1. 5 Plants
2. 5 Beakers
3.Tap Water
4. 150ml of Milk
5. 150ml of Orange Juice
6.Detergent
7. Scissors
8.pH paper
Method
1. I chose 5 healthy plants which are the same size.
2. I filled beakers with 150ml of milk, orange juice, tap water, 30ml of detergent+tap water, 60ml of detergent+
tapwater and put 5 plants to each beakers.
3. I left them by the sunny window for 2 weeks and observed everyday.
4. After 2 weeks I cut the stems with scissors and tested the liquid inside the plants with pH paper.