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Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

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Page 1: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Scientific Processes

Chapter 1.2 & 1.3

(You already know this!)

Page 2: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Why study Biology?

If Biology is the study of life, what could you do with an education in Biology?

With your tablemate, list at least 3 world issues that can be addressed through the knowledge

of Biology. (5 min)Be ready to share

Page 3: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Preserve Our Environment

Page 4: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

“Improve” the Food Supply

Page 5: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Understand the Human Genome

•Genome – the complete set of DNA in one entire organism.

Page 6: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Fighting Disease

•HIV•Cancer

•New Diseases–West Nile Virus–Mad Cow Disease

Page 7: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Gene Therapy

Inserting “healthy genes” into people with genetic disorders.

–Cystic Fibrosis (CF)–Genetic, lung disorder,

–Hemophilia–Bleeder’s disease–Blood won’t clot/scab

Page 8: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

How do scientists uniformly study and present their findings?

Page 9: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Scientific Process•How are scientific experiments conducted?

•Must be complete, detailed, and able to be replicated by other scientists.

•Science community has an accepted format.

Page 10: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

1. Observation

•What do you notice?–Are there patterns?–What are the conditions?–Has anyone else noticed this before?

Page 11: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

2. Ask Questions

● How?● Why?● How many?● How often?● What variations?● What conditions?

Page 12: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

3. HypothesisUsing your knowledge, develop an educated explanation of might be true.•Has to be testable.

Page 13: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

4. Predict

•What do you expect to happen with your experiment, assuming your hypothesis is correct?

Page 14: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

5. Experiment•Confirm or refute your predictions/hypothesis•Terms to know:–Control Group – receives no experimental treatment–Experimental Group –

receives some type of experimental treatment.

Page 15: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

5. Experiment

•Terms to know:•Independent (manipulated) Variable –what is changed in an experiment•Dependent (responding) Variable – what is measured in an experimentE.g. IV – sunlight DV – height of plant

Page 16: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

6. Conclusion(The Write-Up)

•Is your hypothesis supported or rejected?

Page 17: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

Constructing a Theory

•Related hypothesis, tested and confirmed many times by many different scientists.

Page 18: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

In Police work means: hypothesis/or educated guess.

In science means: “most certain”. Explains a broad range of observations. Is probably always true.

E.g.: Theory of Evolution, Big Bang Theory

The definition of THEORY

Page 19: Scientific Processes Chapter 1.2 & 1.3 (You already know this!)

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