We had to make 12 planes of the same plane but we have had to change one variable. A variable is a feature of an object that can change between different versions of the object. For example: some variables in chairs could be height, width, depth, weight, materials, strength, colour. An independent variable is unchanged by other variables. These are usually controlled in experiments to see if they make changes in other variables. We had to decide which independent variable to change to measure the dependent variable. We had to create a spreadsheet to record variables and results. We also had to create planes with measured variations in your chosen independent variable
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