1) Variables that we keep the same.. a) control b) independent c) dependent 2) Variable that we change... a) Dependent b) Controlled c) Independent 3) Name the independent variable: Does the type of soil affect the drainage? a) Type of soil b) Time for soil to drain c) Level of sunlight 4) What could I use as my control for this experiment: 'Does the type of soil affect the drainage?' Tick all that are correct. a) Volume of water b) Type of soil c) Depth of soil d) Time of the year 5) How could I make my experiment more accurate? a) Change the instruments I use to measure b) Keep the control the same c) Repeat the experiment but change the control d) Repeat the experiment and keep the control the same 6) I want to see if different levels of sunlight a plant is exposed to will change the rate of growth. What is my independent variable? a) Type of plant b) Rate of growth c) Level of sunlight 7) From my results, I now want to see if different types of plant grow at different rates. a) My independent variable is the type of plant b) My control is level of sunlight c) My dependent variable is level of sunlight d) My dependent variable is growth rate e) My control is the type of plant

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