Experimental Design & Graphing

What is the purpose of an experiment? To communicate data To test a hypothesis To prove a scientific law None of these Larry was told that a certain muscle cream was the newest bet thing on the market and claims to double a person's muscle power when used as part of a muscle-building workout. Interested in this product, he buys the special muscle cream and recruits Patrick and SpongeBob to help him with an experiment. Larry develops a special marshmallow weight-lifting program for Patrick and SpongeBob. He meets them once every day for a period of 2 weeks and keeps track of their results. Before each session Patrick's arms and back are lathered in the muscle cream, while Sponge Bob's arms and back are lathered with the regular lotion. What question is Larry trying to answer? Who is stronger between SpongeBob and Patrick. Are marshmallows good for weights. Does muscle cream help you build muscle? Write a possible hypothesis (educated prediction) for his experiment. Remember, your hypothesis shouldn't include the word "I" What is the manipulated variable (the factor that Larry is changing) Type of cream Types of weights Muscle growth Time spent lifting weight What is the responding variable (the factor that Larry is measuring) Type of cream Types of weights Muscle growth Time spent lifting weight What is something that needs to be controlled to make sure the results are valid. Type of cream Muscle growth Time spent lifting weight The data table above shows the results of Larry's experiment. What would be a good conclusion he could make? What would be a good title for this graph? Muscle size vs types of cream Muscle size vs. types of weight SpongeBob and Patrick getting buff with Marshmallows If you were graphing the results, would you make a line or bar graph? Line Bar