valerie organo

• composed of living and non-living things
• Red tide


  Visual discoloration of the water
• Ecology


  Study of organism in a habitat
• Biotic Factors


  • Living things such as bacteria, fungi, plants and animals
• Abiotic Factors


  • Non-living things such as soil, water
• Habitat


  Place where an organism lives
• Niche


  Profession or role of an organism in the ecosystem
• Layers of the Biosphere

  • Atmosphere
  • Hydrosphere
  • Lithosphere
• Levels of organization in the biosphere

  • Individual organism
  • Population
  • Community
• Pollution is the degradation or an undesired change in the environment
• Types of pollution


  • Biodegradable pollution
  • Non-biodegradable pollution
• Geocentric theory - Earth is the center of the solar system
• Heliocentric theory - Sun is the center of the solar system
• Nebula


  A vast cloud of dust and gases
• Moon


  • Orbits the Earth
  • Doesn't shine on its own, reflects sunlight
  • Has low density compared to Earth
  • Revolves around the Earth every month
• New Moon


  When the sunlight reaches its far side
• Full Moon


  When the Moon is fully illuminated
• Layers of the Earth

  • Crust
  • Mantle
  • Outer Core
  • Inner Core
• Lithosphere


  Comprised of the crust and upper part of mantle
• Asthenosphere


  Part of the mantle that flows like plastic
• Fault


  A fracture or zone of fractures between two blocks of rock
• Types of Plate Margins

  • Divergent
  • Convergent
  • Transform
• Wegener named the supercontinent Pangea
• Pangea broke up first into smaller continents (Gondwanaland and Laurasia)
• Epicenter


  Point on the Earth's surface that is directly above the focus
• Focus


  Point below the surface where an earthquake originates
• Intensity


  Gives an idea of how strong or weak the shaking is
• Magnitude


  Another way of describing the strength of an earthquake
• Soil supports a multitude of life
• Soil Composition


  • Gravel
  • Sand particles
  • Clay particles
• Soil Horizons


  • O Horizon
  • A Horizon
  • B Horizon
  • C Horizon
  • R Horizon
• Soil Types


  • Sandy soil
  • Clayey soil
  • Loamy soil
  • Residual soil
  • Transported soil
  • Alluvial soil
  • Desert soil