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Solving Problems in Science and Experimental Design

Solving Problems in Science and Experimental Design. Introduction to Biology MHS Biology Department. What are the steps that scientists take to solve problems or answer questions?. Make Observations that lead to a question or a problem that needs to be solved. Propose a hypothesis

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Solving Problems in Science and Experimental Design

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  1. Solving Problems in Science and Experimental Design Introduction to Biology MHS Biology Department

  2. What are the steps that scientists take to solve problems or answer questions? • Make Observations that lead to a question or a problem that needs to be solved. • Propose a hypothesis • Design and perform an experiment. (remember that all experiments are controlled) • Analyze your data and determine whether or not to accept your hypothesis. • If necessary, propose and test a new hypothesis.

  3. Here is you turn to solve a problem using the Scientific Method Problem 1: How strong is a Bess Bug? (Hint -determine the strength of a bess bug)

  4. Guidelines • 3 – 4 students per bess bug is maximum within a group • READ the entire lab BEFORE designing your lab. • Assess and inventory the materials that you are provided before designing your experiment. • All experiments have controls. • You will need to make and record measurements and have multiple trials. • You will be graphing your results.

  5. Part 1: Check Your Lab – Is it Complete? • Do you have a complete materials list? • Did you write out and/or provide a labeled drawing for your procedure? • Did you collect data and perform multiple trials ( you can obtain data from other groups) • Did you graph your data? • Did you perform and submit calculations? • Did you Answer the Analysis Questions that are at the end of the lab?

  6. Follow Up Questions • Compare your results with another lab group. • Did both groups use same measurement systems? Why or Why not? • How could you design this lab so that it would be more universal and easier to share results? • How strong was your Bess Bug? • What units of measurement did you use? • Did you design a controlled experiment? Defend your answer. Remember that controlled experiments have only the dependent and independent variables.

  7. Follow Up Brain Teaser! • Problem 2: Is a Bess Bug stronger than a human? (Hint – you will need to have a means of comparison)

  8. Part 2: Honors Biology Classes Is a Bess Bug stronger than a human? • Explain how you could determine if a bess bug is stronger than a human. (BRIEFLY) • Research the strength of humans and compare your research data to your bess bug collected data. • BRIEFLY explain how you could obtain the strength of a “human” experimentally.

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