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What Is Earth Science


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What Is Earth Science

  1. 1. Important Terminology Regarding Scientific Inquiry <ul><li>Hypothesis: Possible explanation for how or why things happen. Must be testable. </li></ul><ul><li>Theory: An explanation for how something works that has been well tested and widely accepted by the scientific community. </li></ul>
  2. 2. Experimental Design: Variables <ul><li>Variables: Factors that can change in an experiment. </li></ul><ul><li>Manipulated Variable (independent variable): factor that scientists change. </li></ul><ul><li>Responding Variable (dependent variable): factor that may change because of the manipulated variable. </li></ul>
  3. 3. <ul><li>Controlled Variable: The variables that scientists keep the same. </li></ul><ul><li>Experimental Group: The group in an experiment where the manipulated variable is changed. </li></ul><ul><li>Control Group: The group in an experiment where no variable is changed so it can be used as a standard of comparison. </li></ul>
  4. 4. Operational Definition <ul><li>Describes how a particular variable is to be measured. </li></ul>
  5. 5. What is Earth Science?
  6. 7. Overview of Earth Science <ul><li>Earth Science is the name for the group of sciences that deals with Earth and its neighbors in space . </li></ul>
  7. 8. Geology <ul><li>Means “study of Earth”. </li></ul><ul><li>Divided into two areas: physical geology and historical geology </li></ul>
  8. 9. Physical Geology <ul><li>Includes the study of Earth materials like rocks and minerals. </li></ul><ul><li>Includes study of processes that shape our planet. </li></ul>
  9. 11. Historical Geology <ul><li>Study of Earth’s history by the establishment of a timeline of the physical and biological changes that have occurred since Earth was formed. </li></ul>
  10. 13. Oceanography <ul><li>Scientific study of the ocean. </li></ul><ul><li>Includes study of physical ocean, chemical makeup of ocean, ocean life, ocean movement, and geology of seafloor. </li></ul>
  11. 14. Meteorology <ul><li>The study of atmospheric processes which allow scientists to predict the weather and climate . </li></ul>
  12. 15. Astronomy <ul><li>Study of the Universe . </li></ul><ul><li>Study the origin, movement, emissions and development of: </li></ul><ul><ul><ul><li>Galaxies </li></ul></ul></ul><ul><ul><ul><li>Stars </li></ul></ul></ul><ul><ul><ul><li>Planets </li></ul></ul></ul><ul><ul><ul><li>Moons </li></ul></ul></ul><ul><ul><ul><li>Celestial Objects (comets, meteors etc.) </li></ul></ul></ul>