Earth Science

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This presentation introduces students to Earth science and the four systems of the Earth.

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Earth Science

  1. 1. EARTH SCIENCE
  2. 2. WHAT IS EARTH SCIENCE? <ul><li>The study of Earth’s interior, rocks and soil, atmosphere, oceans and outer space. </li></ul>
  3. 3. S EARTH SCIENCE IS ABOUT CONNECTIONS <ul><li>Today scientists look more for the connections among the different parts of the Earth- its oceans, atmosphere, living things and rocks and soil. </li></ul>
  4. 4. HEAT ENERGY FROM INSIDE THE EARTH AND RADIATION FROM THE SUN PROVIDE ENERGY FOR EARTH’S PROCESSES. <ul><li>EARTH SCIENCE VOCABULARY </li></ul><ul><li>Energy- the ability to cause change. </li></ul><ul><li>Evaporation- the process by which liquid changes into gas. </li></ul><ul><li>Convection- hot material rises, cools, then sinks until it is heated enough to rise again. </li></ul><ul><li>Radiation- energy that moves in certain types of waves. </li></ul>
  5. 5. WHY IS EARTH SCIENCE IMPORTANT? <ul><li>Understanding Earth’s processes makes it possible to: </li></ul><ul><li>Know what types of crops to plant and when to plant them </li></ul><ul><li>Know when to watch for dangerous weather </li></ul><ul><li>Predict a volcano’s eruption in time to save people </li></ul>
  6. 6. CHAPTER 1: VIEWS OF EARTH TODAY <ul><li>BIG IDEA: </li></ul><ul><li>Modern technology has changed the way we view and map the Earth. </li></ul>KEY CONCEPT 1.1: Technology is used to explore the Earth system.
  7. 7. <ul><li>Click on the above link to begin the journey courtesy of the Discovery Channel . </li></ul><ul><li>Think about what may happen to the entire marine community if any part were taken away. </li></ul>www.mrmartella.com
  8. 8. THE EARTH SYSTEM <ul><li>Has four major parts: </li></ul>Biosphere Hydrosphere Geosphere Atmosphere
  9. 9. The Four Parts of the Earth System <ul><li>System- an organized group of parts that work together to form a whole </li></ul>ATMOSPHERE: THE MIXTURE OF GASES THAT SURROUNDS AND PROTECTS THE EARTH <ul><li>COMPOSITION: </li></ul><ul><li>NITROGEN (78%) </li></ul><ul><li>OXYGEN (21%) </li></ul><ul><li>CARBON DIOXIDE </li></ul><ul><li>WATER VAPOR </li></ul><ul><li>OTHER GASES </li></ul><ul><li>STUDIED WITH: </li></ul><ul><li>WEATHER BALLONS </li></ul><ul><li>PLANES </li></ul><ul><li>SATELLITES </li></ul>
  10. 10. The Four Parts of the Earth System <ul><li>HYDROSPHERE: MADE UP OF ALL THE WATER ON THE EARTH (OCEANS, LAKES, GLACIERS, RIVERS, UNDERGROUND) </li></ul><ul><li>WATER COVERS ¾ OF THE EARTH’S SURFACE </li></ul><ul><li>ONLY 3% IS FRESH WATER </li></ul><ul><li>NEARLY 70% IS IN GLACIERS AND POLAR ICE CAPS </li></ul><ul><li>STUDIED WITH: </li></ul><ul><li>DEAP –SEA VEHICLES </li></ul><ul><li>BUOYS </li></ul><ul><li>SATELLITE IMAGES </li></ul><ul><li>DIVING SUITS </li></ul><ul><li>AFFECTS THE ATMOSPHERE WHEN WARM/COLD OCEAN CURRENTS INTERACT WITH WIND CURRENTS </li></ul>
  11. 11. The Four Parts of the Earth System <ul><li>BIOSPHERE: INCLUDES ALL LIFE ON EARTH (IN THE AIR, WATER, AND ON LAND) </li></ul><ul><li>STUDIED WITH: </li></ul><ul><li>SATELLITE PHOTOS TRACK YEARLY CHANGES IN PLANT AND ANIMAL LIFE </li></ul><ul><li>SPECIAL EQUIPMENT ALLOWS SCIENTISTS TO STUDY PLACES WITHOUT HARMING THEM </li></ul><ul><li>WHEN TREES EXCHANGE GASES THE BIOSPHERE INTERACTS WITH THE ATMOSPHERE </li></ul>
  12. 12. The Four Parts of the Earth System <ul><li>GEOSPHERE: ALL FEATURES ON THE EARTH’S SURFACE (CRUST) ALONG WITH THE MANTLE, INNER AND OUTER CORES. </li></ul><ul><li>STUDIED WITH: </li></ul><ul><li>SATELLITE IMAGES </li></ul><ul><li>SOUND WAVES </li></ul><ul><li>COMPUTER MODELING </li></ul><ul><li>MATTER MOVES FROM THE GEOSPHERE TO THE ATMOSPHERE WHEN VOLCANOES EXPLODE </li></ul>
  13. 13. ALL FOUR PARTS OF THE SYSTEM SHAPE THE PLANET’S SURFACE <ul><li>Atmosphere and Hydrosphere- Not even the hardest stone can withstand the forces of wind and water. Over millions of years rain, wind, and moving water carved the Grand Canyon. </li></ul>
  14. 14. <ul><li>Geosphere: Landmasses pushing together have set off earthquakes and formed volcanoes and mountain ranges like the Andes around the world. </li></ul>
  15. 15. <ul><li>Biosphere: Plants, animals and humans have also changed the Earth. Walking or riding a bike over open land changes the surface of the planet. </li></ul>How does this picture show all four parts of the Earth system working together?
  16. 16. <ul><li>THE END </li></ul>

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