5.3 Investigating salinisation on plant growth

IB Environmental Systems & Societies: 5.3 Investigating salinisation on plant growth

​This is the sort of topic that I used to encourage for independent planning labs in the pollution topic. I now see it as a good idea for investigation in the IA.There are two basic approaches that can be used in terrestrial systems. The first is a soil-less system, germinating seeds on petri-dishes with cotton wool and filter paper. The second would be to use soil for the seeds. The former is probably faster and involves...

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