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Earth Science

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  • 1. EARTH SCIENCE
  • 2. WHAT IS EARTH SCIENCE? The study of Earth’s interior, rocks and soil, atmosphere, oceans and outer space.
  • 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. 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. 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. 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. 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. THE EARTH SYSTEM Has four major parts: Biosphere Hydrosphere Geosphere Atmosphere ANTHROSPHERE
  • 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. 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. 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. 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. 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. 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. • Geosphere: Landmasses pushing together have set off earthquakes and formed volcanoes and mountain ranges like the Andes around the world.
  • 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. THE END

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