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Biology: the study of living things. Major Units: 1. Life of the Cell

Biology: the study of living things. Major Units: 1. Life of the Cell 2. Cell Division and Genetics 3. Natural Selection 4. Ecology. Describe 3 ways data can be reported in a laboratory report. Scientific Method A. Problem

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Biology: the study of living things. Major Units: 1. Life of the Cell

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  1. Biology: the study of living things. Major Units: 1. Life of the Cell 2. Cell Division and Genetics 3. Natural Selection 4. Ecology

  2. Describe 3 ways data can be reported in a laboratory report.

  3. Scientific Method • A. Problem • 1. Find the effects of radioactive iodine on laboratory rats. • B. Research/Observations • 1. Findings

  4. Your problem: To find the best growth medium for effectively allowing mealworms to move through their life cycle Assignment: Research the life cycle, niche, and nutrition of mealworms!

  5. “Whether you believe you can or you believe you can’t; either way you are right!!!

  6. Even if you are on the right track, you will still get run over if you just sit there!! - Will Rogers

  7. If you do what your supposed to do and prepare for the events of life, it is amazing how many times you will find yourself in the ‘right place at the right time’!

  8. Hypothesis • 1. If/then statement • 2. Must be research based • 3. Must be testable • Procedure/Testing Hypothesis • Data collection/Observations

  9. My hypothesis: If I select 2 groups of rats and give one group injections of radioactive iodine for 30 days, then the group of rats that get the injections will have an enlarged gall bladder and will show signs of eating less and weight loss.

  10. 1. Organized data tables/graphs • Keep/change/discard hypothesis • 1. Data must support this decision

  11. Scientific Experiment Terminology • Variable – anything affecting experiment • Manipulated variable – the one thing intentionally changed • Control group – does not get m.v. • Experimental group – gets m.v.

  12. Once I have my problem, the next step of scientific method is to ______________. • a. plan my procedure b. research my problem • c. collect my data d. write my conclusion • If I am writing a hypothesis, one thing that has to true is that it is ______________. • a. a piece of data b. research based • c. testable d. both b and c • Scientific procedure should be_______. • a. very complex b. easily repeatable • c. written by professionals d. the first step

  13. Anything that can affect the outcome of my experiment is called a ______________. • a. variable b. piece of data • c. manipulated variable d. hypothesis • During a controlled experiment, the group that gets the manipulated variable is called the ___. • a. control group b. manipulated group • c. experimental group d. data

  14. What is the difference between a control group and the experimental group in an experiment?

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