{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

The Scientific Method - Read this document about the...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Read this document about the SCIENTIFIC METHOD outside of class and keep it as a reference. Make sure you read about Experimental Protocols at the end of the document. Textbook Reference pages 13-1. First, make an OBSERVATION. A good scientist is observant and notices things in the world around him/herself. (S)He sees, hears, or in some other way notices what’s going on in the world and becomes curious about what’s happening. This can and does include reading and studying what others have done in the past because scientific knowledge is cumulative . Scientific inquiry involves the testing of proposed explanations involving the use of conventional techniques and procedures. In lab, you will devise ways of making observations to test proposed explanations. Below are the major steps involved in testing a proposed explanation (hypothesis). It is important to remember to avoid bias in an experiment. In science, bias means lacking quantifiable data. In science, it is also important to repeat experiments, use a large sample size, and data collection needs to be objective. Ask a QUESTION. The scientist then raises a question about what (s) he sees going on. The question raised must have a “simple,” concrete answer that can be obtained by performing an experiment . For example, “What is causing my sore throat?” could be answered by doing an experiment, but “Why did I have to get a sore throat?” couldn’t really be answered by doing an experiment. Create a HYPOTHESIS. When exposed to an irritant, a sore throat will occur. The independent variable is the irritant, and the dependent variable is the sore throat. A hypothesis is a tentative answer to the question, a testable explanation for what was observed. The scientist tries to explain the cause of what was observed. In a cause and effect relationship, what you observe is the effect, and hypotheses are possible causes. A generalization based on inductive reasoning is not a hypothesis. A hypothesis is not an observation, rather, a tentative explanation for the observation. For example, I might observe the effect that my throat is sore. Then I might form hypotheses as to the cause of that sore throat, possibly a bacterial infection, a viral infection, or screaming too much at a ball game.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern