Maricarmen AyalaInvestigation I- Measurement, Experiments, and the Scientific Method July 9, 2018Ana Ortiz & Victoria ElizondoBIOL-1106-S80Ms. GallardoSpring 2018 Investigation I- Measurement, Experiments, and the Scientific Method Objectives:We will be learning the steps of the scientific method. We will be conducting an experiment following the scientific method.We will make observations and construct a hypothesis.
Background:The process of science involves the “study of the observable.” Science is everywhere and best belief part of our everyday life. As you take a look at the world around you, don’t you begin to wonder what the relationship such as the cause and effect between the things you see. Well, the process knows to a scientist for answering such questions is called the scientific method. This method consists of making observations, posing questions, stating a hypothesis, performing an experiment, collecting and organizing data, and seeing the final results. The scientific method begins by making an observation of some of the physical or chemical characteristics around you. Once you have taken a look around, ask yourself a question. What would you like to know? When you have settled on a question, create a hypothesis.
A hypothesis is an educated guess on the answer to your question. Once you have created a hypothesis begin to conduct an experiment weather to see if your hypothesis is true or not. But before you come to a conclusion for your final results make sure to test your experiment more than once just to have an accurate answer. During the experiment, make sure to record your observation. Once the experiment is complete collect and you go over your data to see whether your results answer your hypothesis. Finally, once you have finished analyzing your results come up with a conclusion of the experiment that you conducted.
Materials: 12 inch ruler 2 meter sticks8 PeersPencil/PenHandoutCalculator Procedure:Step 1: Read the instructions and the background in the handout that was given to you. Step 2: After reading the instructions and the background, gather all the materials that you’ll be needing to perform the experiment.Step 3: Pause for a second and take a look at your classmates and observe some physical characteristic that varies among them. Step 4: In order to perform this experiments the 2 characteristics that appear to vary in each of your peers is their height and the length of their hands. Use your observation to create a hypothesis about the relationship between the 2 characteristics. Step 5: Get together with all 8 of your peers to go over the experiment (to make sure you’re all on the same page) before you begin. Step 6: In order to get the height of each of your peers, have one of them stand straight against the wall, while another peer places both meter sticks beside the person against the wall. Have them hold both meters sticks one on top of the other and be sure to measure in inches.
Once the meter sticks are placed together and everything is set to use the 12-inch ruler to mark the height and with a pen or pencil record the height of your classmate on the table that’s on your handout. Repeat this step until you have recorded all 8 of your peers. Step 7: In order to get the length of your peer’s hands, have them extend one of their hands out and using the 12-inch ruler to measure the length of their hand. Using a pen or pencil record the length t of your classmate on the table that’s on your handout. Repeat this step until you have recorded all 8 of your peers. Step 8: Once you have finished measuring and recording all your data get together with all your peers and as a group comes to a conclusion for your hypothesis.
Step 9: Finally, once you have come to an agreement about the final results and everything is recorded and written down, make sure to put away all the materials you gathered and make sure the work space you used is nice and clean. Data:Participant Name Independent Variable Name(Height) Dependent Variable Name (Hand Size)Ana Ortiz 62 in. 6.5 in. Tori Elizondo 65.5 in. 7 in.
Nick Rodriguez 65 in. 7 in.Keivin Saldana 66 in.7 in.Jc Garza64.5 in.7 in.Cristina Diaz 63 in.
7 in.Luz Mendez 62.5 in.6.5 in.Gisela Vela 61 in.6 in.
Conclusion:As my peers and I performed this experiment, I was able to see the relationship between the two variables. People that were 65 inches or taller had a hand size of 7 inches and the people that were shorter than 65 inches had a hand size of 6 to 6.5 inches. The data my peers and I collected supported our hypothesis that tall people indeed have bigger hands. As we went through the experiment, I don’t think we had anything go wrong, our data supported our hypothesis and the experiment went well as we didn’t seem to struggle to perform this experiment.
Something different that I would have done would have been that instead of using a table to record our data, I would have used a line or bar graph. I believe a line or bar graph would have given us a better visual result than the table. With the line or bar graph, we could have listed each other from shortest to tallest with the hand size next out height and then analyze the data to get our final results. Personally, that’s something I would have done differently but overall my peers and I were able to back up our hypothesis.