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Designing an Experiment to Investigate the Effect of Changing Variables on a Dependent Variable

This experiment aims to explore the relationship between changing variables and their impact on a dependent variable. By varying certain factors and measuring corresponding outcomes, the experiment will provide insights into potential cause-effect relationships.

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Designing an Experiment to Investigate the Effect of Changing Variables on a Dependent Variable

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  1. Part 1: Designing the Experiment What I am wondering about (my beginning question): Brainstorming Ideas Related to my Beginning Question Part A: Things I could change or vary: Part B: Things I could measure or observe:

  2. Identifying Variables I will change: I will measure or observe: Place sticky note from Part A here Place sticky note from Part B here I will not change (I will keep these the same so my test is fair): Place remaining sticky notes from Part A here Place remaining sticky notes from Part A here Place remaining sticky notes from Part A here I will not measure or observe: Place remaining sticky notes from Part B here Place remaining sticky notes from Part B here Place remaining sticky notes from Part B here

  3. Asking a Testable Question (Refining my beginning Wondering) When I change _______: What happens to _______? What I will measure or observe What I will change Write the question that will guide your experiment: Based on prior knowledge, what do you already know about this? Predictions (Note: List 3 possible outcomes: Increase, Decrease, and No Affect.) Based upon my question, I predict: Circle the number you want to investigate 1. 2. 3.

  4. Research Sources: List the information you collected during your research: Hypothesis: If………………………………………………………….THEN……………………… ............................... BECAUSE………………………………………………. ……………………………………………………………………………………………..

  5. The Procedure (Note: Others should be able to follow the way you set up your fair test) Materials List (detailed) Directions (List exactly what you did in each step of your experiment) Set-Up Conditions/Controls (What conditions should be kept constant?) • Place remaining sticky notes from Part A here • Place remaining sticky notes from Part A here

  6. What I will change or vary (independent variable): What I will change What I will do to carry out the change: Number of trials I will conduct or amount of samples to include: ______ The data I will collect by measuring or observing (dependent variable): What I will measure or observe How I will collect the data: How I will record the data (for example: table, chart, picture):

  7. Part 2: Carrying Out the Experiment Data Collection: When I changed _____, what measurements or observations resulted? What I will measure or observe (dependent variable) What I will change (independent variable) Record your Data:(Note: This is intended simply as an example to help get you started. You may design your own chart to fit your experiment.)

  8. Graphing Results Which type of graph is best- line graph or bar graph? ______________ Graph: should reflect mean average of trials What I will measure or observe (dependent variable) Y axis What I will change (independent variable) What I will change (manipulated variable) X axis (Note: Both axes will need to be labeled and the appropriate scale marked)

  9. Title of Graph: __________________________ Y-axis: ______________________________________ X-axis: ______________________________________ When I changed ____________, what happened to ____________? What I measured or observed (dependent variable) What I changed (independent variable)

  10. Results/Explanation • Summarize what you discovered from this experiment. Include: • Looking at your graph, describe your results (patterns or relationships • shown by your data) using mathematical language. • Write an explanation that reflects your predictions and data in your • experiment. • Explain real world uses relating to research and the experiment. • Any new questions for further investigation- what else do you wonder • about?

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