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Experimental design and data analysis are the foundation of science. When scientists invent a new molecule or process, they publish the procedure so others can replicate their work. Read the example student procedure below, and select everything that is missing. What would you want to know when doing this procedure yourself? 1. 4mL of PVA and 1mL of Borax. 2. Stir 10 times to mix the solutions together. 3. 10 minutes. 4. A ball. Mixing time Concentrations of solutions Amounts of each material Order of addition Action verbs When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat stans 1.8 and change the rancantration of added guar gum. Dependent Independer Control: When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat steps 1-8 and change the concentration of added guar gum. Dependent: Independent Control: When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat steps 1-8 and change the concentration of added guar gum. Depeni Indepe Experimental design and data analysis are the foundation of science. When scientists invent a new molecule or process, they publish the procedure so others can replicate their work. Read the example student procedure below, and select everything that is missing. What would you want to know when doing this procedure yourself? 1. 4mL of PVA and 1mL of Borax. 2. Stir 10 times to mix the solutions together. 3. 10 minutes. 4. A ball. Mixing time Concentrations of solutions Amounts of each material Order of addition Action verbs When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat stans 1.8 and change the rancantration of added guar gum. Dependent Independer Control: When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat steps 1-8 and change the concentration of added guar gum. Dependent: Independent Control: When you are planning an experiment, you should carefully determine which variables are dependent, independent, or controlled. Read the following procedure, and classify each variable. 1. Add 4mL of 4% PVA to a beaker. 2. Add 2mL of 0.5% guar gum to the solution. 3. Stir this mixture 10 times. 4. Add 1mL of borax. 5. Stir the mixture 5 times. 6. Let the solution sit for 5 minutes. 7. Roll the resulting material into a ball. 8. Drop the ball from 1 meter high onto the lab bench, and measure the height the ball bounces back to. 9. Repeat steps 1-8 and change the concentration of added guar gum. Depeni Indepe