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

Preserve Our Environment

“Improve” the Food Supply

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

Fighting Disease HIV Cancer New Diseases – West Nile Virus – Mad Cow Disease

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

How do scientists uniformly study and present their findings?

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.

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

2. Ask Questions ● How? ● Why? ● How many? ● How often? ● What variations? ● What conditions?

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

4. Predict What do you expect to happen with your experiment, assuming your hypothesis is correct?

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.

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

6. Conclusion (The Write-Up) Is your hypothesis supported or rejected?

Constructing a Theory Related hypothesis, tested and confirmed many times by many different scientists.

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