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Earth Science

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Earth Science

  1. 1. EARTH SCIENCE
  2. 2. WHAT IS EARTH SCIENCE? The study of Earth’s interior, rocks and soil, atmosphere, oceans and outer space.
  3. 3. SEARTH SCIENCE IS ABOUT CONNECTIONS Today scientists look more for the connections among the different parts of the Earth- its oceans, atmosphere, living things and rocks and soil.
  4. 4. HEAT ENERGY FROM INSIDE THE EARTH AND RADIATION FROM THE SUN PROVIDE ENERGY FOR EARTH’S PROCESSES. EARTH SCIENCE VOCABULARY • Energy- the ability to cause change. • Evaporation- the process by which liquid changes into gas. • Convection- hot material rises, cools, then sinks until it is heated enough to rise again. • Radiation- energy that moves in certain types of waves.
  5. 5. WHY IS EARTH SCIENCE IMPORTANT? Understanding Earth’s processes makes it possible to: • Know what types of crops to plant and when to plant them • Know when to watch for dangerous weather • Predict a volcano’s eruption in time to save people
  6. 6. CHAPTER 1: VIEWS OF EARTH TODAY BIG IDEA: Modern technology has changed the way we view and map the Earth. KEY CONCEPT 1.1: Technology is used to explore the Earth system.
  7. 7. Click on the following link to begin the journey courtesy of the Discovery Channel. We know how fire destroys, but how does it create?
  8. 8. THE EARTH SYSTEM Has four major parts: Biosphere Hydrosphere Geosphere Atmosphere ANTHROSPHERE
  9. 9. The FIVE Parts of the Earth System System- an organized group of parts that work together to form a whole ATMOSPHERE: THE MIXTURE OF GASES THAT SURROUNDS AND PROTECTS THE EARTH COMPOSITION: •NITROGEN (78%) •OXYGEN (21%) •CARBON DIOXIDE •WATER VAPOR •OTHER GASES STUDIED WITH: •WEATHER BALLONS •PLANES •SATELLITES
  10. 10. The FIVE Parts of the Earth System HYDROSPHERE: MADE UP OF ALL THE WATER ON THE EARTH (OCEANS, LAKES, GLACIERS, RIVERS, UNDERGROUND) WATER COVERS ¾ OF THE EARTH’S SURFACE • ONLY 3% IS FRESH WATER • NEARLY 70% IS IN GLACIERS AND POLAR ICE CAPS STUDIED WITH: • DEEP –SEA VEHICLES • BUOYS • SATELLITE IMAGES • DIVING SUITS AFFECTS THE ATMOSPHERE WHEN WARM/COLD OCEAN CURRENTS INTERACT WITH WIND
  11. 11. The FIVE Parts of the Earth System BIOSPHERE: INCLUDES ALL LIFE ON EARTH (IN THE AIR, WATER, AND ON LAND) STUDIED WITH: • SATELLITE PHOTOS TRACK YEARLY CHANGES IN PLANT AND ANIMAL LIFE • SPECIAL EQUIPMENT ALLOWS SCIENTISTS TO STUDY PLACES WITHOUT HARMING THEM WHEN TREES EXCHANGE GASES THE BIOSPHERE INTERACTS WITH THE ATMOSPHERE
  12. 12. The FIVE Parts of the Earth System GEOSPHERE: ALL FEATURES ON THE EARTH’S SURFACE (CRUST) ALONG WITH THE MANTLE, INNER AND OUTER CORES. STUDIED WITH: • SATELLITE IMAGES • SOUND WAVES • COMPUTER MODELING MATTER MOVES FROM THE GEOSPHERE TO THE ATMOSPHERE WHEN VOLCANOES EXPLODE
  13. 13. The FIVE Parts of the Earth System ANTHROSPHERE: THE PART OF THE ENVIRONMENT THAT IS MODIFIED BY HUMANS FOR USE IN HUMAN ACTIVITIES AND HABITATS STUDIED WITH: • CENSUS • OBSERVING AND TRACKING MOVEMENTS AND INFRASTRUCTURE THE ANTHROSPHERE AND HYDROSPHERE INTERACT DURING A TSUNAMI.
  14. 14. ALL FIVE PARTS OF THE SYSTEM SHAPE THE PLANET’S SURFACE • 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.
  15. 15. • Geosphere: Landmasses pushing together have set off earthquakes and formed volcanoes and mountain ranges like the Andes around the world.
  16. 16. • Biosphere: Plants, animals and humans have also changed the Earth. Walking or riding a bike over open land changes the surface of the planet. How does this picture show all five parts of the Earth system working together?
  17. 17. THE END

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