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Chapter 2 A New View of the Earth

Discover the lives and work of three influential scientists, their scientific thinking qualities, the scientific method, and the essential tools they use to study the Earth, ocean, sky, and stars.

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Chapter 2 A New View of the Earth

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  1. Chapter 2A New View of the Earth

  2. 2-1 The Scientist’s Mind A.Three Scientists, Three Individuals a.Who is Carl Sagan? b.What is he famous for? a noted astronomer and Pulitzer prize winner

  3. 2-1 The Scientist’s Mind c.Who is Enriqueta Barrera? d.What does she do? e.Who does Evan Forde work for? f. What does he feel is his greatest strength? She is the director of geobiology at the National Sciences Foundation. NOAA Observation

  4. 2-1 The Scientist’s Mind B.Different Lives, Common Goals a.Where do scientists work? b. What do they all have in common? Everywhere They like to understand the world around them

  5. 2-1 The Scientist’s Mind C.Qualities of Scientific Thinking a.Evidence-Material or data that can be measured and tested to verify their prediction. b.Hypothesis-A tentative explanation for an observation or phenomenon.

  6. 2-1 The Scientist’s Mind c.Technology-The practical application of science to meet human needs. d. The objective of scientific study is to understand the natural world.

  7. 2-2 Scientific Methods of Inquiry A.How Scientists Approach Questions a.Scientific Inquiry-involves observing, asking questions, forming hypothesis, and sharing what has been learned. b. What did Dr. Custer do? He studied groundwater levels

  8. 2-2 Scientific Methods of Inquiry B.Peer Review and Scientific Journals a.Are you published? b.Peer Review- Experts in the field read and review the paper for validity. c. Why is this important? To find errors and test honesty

  9. 2-2 Scientific Methods of Inquiry C.The Importance of Testing Ideas a.Why is it important to have your ideas tested? b. What happened in Utah? To make sure you didn’t mess up Their results could not be repeated by other scientists

  10. 2-2 Scientific Methods of Inquiry D.Scientific Theories and Laws a.Theory-An explanation for observable events or facts for which no exception has been found. - Example:

  11. 2-2 Scientific Methods of Inquiry b.Law-They are generalizations about how the natural world behaves under certain conditions. -Example:

  12. 2-3 Scientist’s Tools A.Tools to Study the Earth and Ocean a.Tools can be big, small, cheap or expensive b. What are some examples? binoculars, submarine, microscope, hammer…..

  13. 2-3 Scientist’s Tools B.Tools to Study the Sky and Stars a.What are some examples of weather instruments? b. What are some examples of Astronomy tools? Weather balloon, thermometer, wind gauge…. Telescope, space ship….

  14. 2-3 Scientist’s Tools C.Tools with Many Uses a.What two tools have revolutionized earth science? b.Why? c. What is the most important tool? Computers and Satellites The mind

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