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Scientific Methods in Biology: Pre-Assessment and Experimental Design

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sandrahharrison
11 diapositives · 248 Views · Jan 07, 2020

Explore key concepts in biology pre-assessment, scientific methods, and metric systems. Practice making observations, generalizations, and inferences. Understand controlled experiments and analyze a Canada Goose migration study.

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Scientific Methods in Biology: Pre-Assessment and Experimental Design
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  1. Scientific Methods Chapter 2 Biology 1 CHS Pre-Test Notes Canada Goose

  2. Pre-Assessment 1. A logical conclusion based on observations is called a(an) a.generalization. b.hypothesis. c.inference. d.theory. 2. When enough experimental data support a hypothesis, the hypothesis becomes a(an) a.fact. b.theory. c.inference. d.conclusion. 3. Thinking that someone is at the door when you hear the doorbell ring is an example of a(an) a.inference. b.observation. c.theory. d.conclusion.

  3. Pre-Assessment 4. The ability to reproduce results is an important part of any a.hypothesis. b.theory. c.law. d.experiment. 5. The scientific unit used to measure mass is the a.liter b.gram c.celsius d.meter 6. The scientific unit used to measure volume is the a.liter b.gram c.celsius d.meter

  4. Pre-Assessment 7. Biology is the scientific study of a.the land, water, and air on Earth. b.animals. c.life. d.the universe. 8. A controlled experiment allows the scientist to isolate and test a.a conclusion. b.a mass of information. c.several variables. d.a single variable.

  5. MAIN Pre-Assessment 9. A hypothesis a.can be completely proven. b.may be disproved by a single experiment. c.does not have to be tested to be accepted as correct. d.is a proven fact. 10. A theory a.is always true. b.is the opening statement of an experiment. c.may be modified or discarded. d.is a problem to be solved.

  6. 1 of 4 2.1 Collecting Information A. Observation - B. Generalization – C. Inference – Assignment: Make 5 of each regarding the picture on page 22

  7. 2 of 4 2.2 Scientific Method A. Steps - B. Variables - 1. Dependant - 2. Independent - C. Controls -

  8. 3 of 4 Metric System • meter • liter • gram • milli- • centi- • deci- • kilo-

  9. 4 of 4 MAIN Review • Look at the picture over the white board with the flower on it, what are 2 observations and 2 inferences you could make? • How is an inference different from an observation? • How is the metric system set up?

  10. Canada Goose DesignUnknown source • A flock of Canada geese has been seen flying south over a particular route year after year. A young ornithologist wanted to see if they used visual information (landmarks such as rivers, hills, or other types of topography) in determining their course. He borrowed a plane and flew one-half of the starting flock due west of their starting point and released the birds. The other half of the birds were left alone and allowed to migrate. Both groups of birds flew south and ended up about 300 miles apart.

  11. MAIN Canada Goose DesignUnknown source • Which group of birds is the experimental group? • Which group is the control group? • What is the variable factor in this experiment? • What cautions might an experienced ornithologist give in setting up the control experiment? • What conclusion might be made from this experiment?