Scientific Method

steps Question Background research/ observations Hypothesis Experiment Analyze data Conclusion Communicate results

Controls Controlled Variables stay the same throughout the experiment. Control group- stays the same; compare different independent variables to it Example: How does the amount of water affect plant growth? C.V. = type of plant, location of plant, type of water C.G. = plant with no water

Independent variable ONE thing that I change in the experiment. What do I do different each time I conduct the experiment? Example: How does the amount of water affect plant growth? I.V. = amount of water

Dependent variable What’s observed and changes depending on the independent variable Example: How does the amount of water affect plant growth? D.V. = plant growth

Engineering design process

Steps Identify the problem Research Design Build prototype Test Evaluate If it doesn’t work, go back to step 3 If it works, communicate results