Chapter 1. CA Science Standard Investigation and Experimentation 1. Scientific progress is made by...
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Transcript of Chapter 1. CA Science Standard Investigation and Experimentation 1. Scientific progress is made by...
![Page 1: Chapter 1. CA Science Standard Investigation and Experimentation 1. Scientific progress is made by asking meaningful questions and conducting careful.](https://reader036.fdocuments.us/reader036/viewer/2022062305/5697c0251a28abf838cd50a2/html5/thumbnails/1.jpg)
Scientific MethodChapter 1
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CA Science StandardInvestigation and Experimentation
1. Scientific progress is made by asking meaningful questions and conducting careful investigations. As a basis for understanding this concept and addressing the content in the other four strands, students should develop their own questions and perform investigations.
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What is Science?Science is a process of observing, studying, and thinking about
things in your world to gain knowledge.
Devils Postpile: Created when hot lava cooled and cracked.
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Nature of ScienceA. Science assumes the natural world is
1.) consistent 2.) predictable
B. Goals of science are1.) to discover patterns in nature2.) use knowledge to make predictions
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Nature of Science
C. Science and Ethics1.) scientific discoveries can lead to serious ethical
implications2.) scientific investigations must be conducted ethically
compliance with the law, health and safety.
For example, a researcher who fabricates data in a clinical trial may harm or even kill patients, and a researcher who fails to abide by regulations and guidelines relating to radiation or biological safety may jeopardize his health and safety or the health and safety of staff and students.
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Nature of Science D. The Scientific Method
1.) State the problem/ask a question2.) Gather information3.) Form a hypothesis4.) Experiment5.) Record and analyze data6.) State a conclusion
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Nature of ScienceE. An idea can become a:
1.) hypothesis – tentative or untested explanation. ie: If you get at least 6 hours of sleep, you will do better on tests than if you get less
sleep.
2.) theory – is an explanation based on many observations during repeated experiments. ie: Big Bang Theory
3.) law – is a basic principle that describes the behavior of natural phenomenon.
ie: Newton’s first Law of Motion
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Nature of ScienceConducting Experiments
1.) 2 groups Control Group – part of an experiment that is not exposed to a variable Experimental Group – part of an experiment that is exposed to a variable
2.) Additional Variable Independent variable - manipulated part of an experiment the variable you want to test Dependent variable – observable outcomethe variable being measured