1. Unit 1 Lesson 2 Scientific Knowledge
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2. Unit 1 Lesson 2 Scientific Knowledge
Florida Benchmarks
SC.6.N.2.2 Explain that scientific knowledge is durable because it is open to change as new evidence or interpretations are encountered.
SC.6.N.3.1 Recognize and explain that a scientific theory is a well-supported and widely accepted explanation of nature and is not simply a claim posed by an individual. Thus, the use of the term theory in science is very different than how it is used in everyday life.
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3. Unit 1 Lesson 2 Scientific Knowledge
Florida Benchmarks
SC.6.N.3.2 Recognize and explain that a scientific law is a description of a specific relationship under given conditions in the natural world. Thus, scientific laws are different from societal laws.
SC.6.N.3.3 Give several examples of scientific laws.
LA The student will record information (e.g., observations, notes, lists, charts, legends) related to a topic, including visual aids to organize and record information and include a list of sources used.
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4. Explain That! What are some types of scientific explanations?
Unit 1 Lesson 2 Scientific Knowledge
Explain That!
What are some types of scientific explanations?
Examples of scientific explanations are theories, models, and laws.
A scientific theory is a well-supported explanation about the natural world.
Explain observations scientists have made
Undergo lots of testing
Based on Evidence
Plate tectonics is an example of a scientific theory.
Theories change over time
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5. What are some types of scientific explanations?
Unit 1 Lesson 2 Scientific Knowledge
What are some types of scientific explanations?
A scientific model is a representation of something in the natural world.
Help scientists study things that may be to large or small to study otherwise
Models can be computer programs, mathematical equations, physical representations, and maps.
Scientists use models to help them understand past present and future events
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6. What are some types of scientific explanations?
Unit 1 Lesson 2 Scientific Knowledge
What are some types of scientific explanations?
How does a model of Earth help scientists to visualize past events, such as the breakup of Pangaea?
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7. What are some types of scientific explanations?
Unit 1 Lesson 2 Scientific Knowledge
What are some types of scientific explanations?
A scientific law is a basic principle of nature that always occurs under certain conditions.
Laws tell scientists what to expect. They are eternal and unavoidable.
Laws can be stated in many ways, including as equations or descriptions.
Charles Law states as the temperature of a gas increase its volume increases
Charles Law V1/T1 = V2/T2 or V1T2 = V2T1,
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8. Unit 1 Lesson 2 Scientific Knowledge
Bending the Law
The law of gravity states that the attraction between two masses gets greater the larger the masses are and the closer they are.
Albert Einstein proposed that large objects can bend space. Gravity is the result of smaller objects “falling” down this warped space.
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9. Consider the Source What makes good scientific knowledge?
Unit 1 Lesson 2 Scientific Knowledge
Consider the Source
What makes good scientific knowledge?
The best scientific theories and models are those that can adapt to explain new observations.
Scientific knowledge often is incomplete. As new evidence is presented, theories change.
The goal of science is to explain as much as possible and be open to change.
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10. What makes good scientific knowledge?
Unit 1 Lesson 2 Scientific Knowledge
What makes good scientific knowledge?
How did new scientific knowledge change the theory of light?
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11. What makes a good source?
Unit 1 Lesson 2 Scientific Knowledge
What makes a good source?
Government, university, and nationally recognized research institutions usually are reliable sources.
Publications that are more than a few years old are unreliable sources of information.
Information made by those trying to sell a product often is unreliable.
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