20 6. 1. 2. 3. 4. 5. EXPERIMENTAL DESIGN: "Rivers are sometimes polluted by warm water from power station outflows. This is known as thermal pollution and can affect the growth of plants. Design an experiment to investigate the effect of water temperature on the growth of plants. A. Aim If a over sy polluted by warm water does it affect The geoth growth of the plants Hypothesis Dependent variable Independent variable The war water fixed variables (5) Design an experiment.....​