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Earth Science

Earth Science. Chapter 1: Earth as a System. What is Science ?. Science is:

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Earth Science

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  1. Earth Science Chapter 1: Earth as a System

  2. What is Science? Science is: Any system of knowledge which tries to observe, identify, understand and describe the nature of the Universe, in whole or part. Science involves unbiased observations and study, and systematic experimentation (Scientific Method) carried on in order to understand what is being studied.

  3. Science enables you to understand your world. Every time you try to find out how and why things look and act the way they do, YOU ARE ACTING LIKE A SCIENTIST!

  4. So Never Say, “I don’t understand Science!!” Everyone, whether you like Science, or not, has wondered why something is the way it is!

  5. What is Earth Science?? Earth Science is the study of our entire planet, its past history and change, its present activity, and the way that it will change in the future.

  6. What is Earth Science? Earth Science is the study of our planet’s interacting systems (the geosphere, hydrosphere, biosphere and atmosphere) , its place within the solar system, and the universe beyond the earth.

  7. Why Study Earth Science??(view ESCI Intro. PPT)

  8. The objective of Earth Science is to understand the history of the Earth and how it will behave in the future, to find and manage the Earth’s natural resources on which our civilization depends…

  9. And, finally, simply to understand the nature of our own back yard.

  10. Earth Science Disciplines Geology Oceanograpgy Hydrology Astronomy Meteorology

  11. Geologyis the study of Earth, its matter, and the processes that form and change Earth. Some of the things Geologists look at are volcanoes, earthquakes, maps, fossils, mountains, and land uses.

  12. Meteorologyis the study of weather and the forces and processes that cause it. Meteorologists study storm patterns, climates, and what factors causes our daily weather.

  13. Astronomyis the study of objects in space, including stars, planets, and comets. Astronomers study space objects and seek evidence about the beginning and future of the universe.

  14. Oceanography is the study of Earth’s oceans. Oceanographers study the processes that occur within oceans and the effects humans have on these processes.

  15. Hydrology is the study of the Earth’s fresh waters. Hydrologists help provide information needed to find adequate supplies of fresh water. They also study floods and water pollution.

  16. Chapter 1.1Earth Systems Science

  17. Advances in technology have allowed scientists to study the Earth in a variety of different ways. Submersible Satellite Seismometer

  18. Satellites and space craft allow us to view, photograph and map Earth from Space.

  19. Submersibles and ships allow us to view, photograph and map the ocean floor.

  20. ROV’S

  21. Buoys and other monitoring devices provide us with data related to events such as tsunamis and earthquakes.

  22. Powerful computer programs called GIS (Geographic Information Systems) help scientists organize, layer and interpret huge amounts of collected data in order to study how the Earth changes over time.

  23. Lava Flows over time

  24. The information collected from this technology has provided scientists with an understanding that the Earth’s spheres are strongly connected and interactive, and that the Earth is more than a collection of separate parts.This new method of studying the Earth is called: Earth Systems Science.

  25. Using data from modern technology, scientists can create complex representations of how the Earth and other parts of our Universe “work”. These representations of Earth processes are called models. Tsunami Modeling Program

  26. Tsunami Model

  27. What is a System? A System is defined as: A part of the Universe that can be studied separately. The Solar System

  28. Example: Respiratory System

  29. System models can be used to study what happened in the past, what is currently happening, and what might happen in the future. Galactic Collision

  30. Galactic Collision

  31. Galaxy Model

  32. Galaxy Model

  33. Two Types of Systems • Closed System: Energy may enter and leave, but matter does not. (examples?) • Open System: System and its surroundings freely exchange both matter and energy. (examples?) • What is the Earth?

  34. Earth Systems Science studies the flow of energy in and out of the Earth’s open systems, or Spheres.

  35. Chapter 1.2The Earth’s Four Spheres

  36. Matter and energy move back and forth between the different Earth Spheres, every day, all around you Can you think of some examples of how this is so?

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