University:
Cameron University
Course:
1004 | General Biology
Academic year:

2023
Views:

461

Pages:

14
Author:

SpaceCadet101

Scientific Method 1.What is it? 2. Steps to the Method 3. Big Ideas of Science and Scientific Method What is it? Scientific Method A step by step process that science uses to explain and measure phenomena using observations. What is it? 2 types of observations Qualitative Observations- Observations that are physical descriptions that are not measurable by numbers. There are some exceptions. (Examples: Color, Texture, Smell, Taste) Quantitative Observations- Observations that are measurements and numbers. (Examples: 10 meters, 20 miles per hour, 5 feet 3 inches) Steps to the Scientific Method 1. 2. 3. 4. 5. Question/Observation Hypothesis Controlled Experiment Analysis Conclusion Steps to the Scientific Method 1. Question/Observations- Ask a question that only has two possible answers. Example: Flies land on meat that is left uncovered. Later, maggots appear. Steps to the Scientific Method 2. Hypothesis- Infer an answer from collected observations. A Hypothesis is one of two possibilities. Example: Flies produce maggots. Steps to the Scientific Method 3. Controlled Experiment- Testing the hypothesis by keeping all but 1 or 2 variables constant between two groups: Control and Experimental Example: Redi’s Experiment of Flies and Maggots Control GroupExperimental GroupNothing 1 or 2 variables changed. change. Changed variable: A lid was added. Responding variable: Maggots The changed variable is called the independent variable. Example: The Independent Variable is the lid. Results of the Experiment The responding variable is called the dependent variable. Maggots formed on the uncovered meat. Maggots did not form on the uncovered meat. Maggots are the dependent variable. Steps to the Scientific Method 5. Analysis- Results of experiment is presented as a table, chart or graph with dependent and independent variables shown. Steps to the Scientific Method 5. Conclusion- Is the hypothesis supported or not? Example: Maggots only appear when flies come in contact with meat. Big Ideas of Science/Scientific Method How is Science useful and how is it applied? Answer: Science provides an explanation of phenomena through recording observations and inferring what happens. Science is applied through the Scientific Method. Big Ideas of Science/Scientific Method How does the process of science help us explore and understand our surroundings? Answer: Science uses the Scientific Method. The Scientific Method is writing of our observations (facts) and inferring (educated guess) what they mean.