Science Chapter 12
Terms
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- The carrying away of sediment; how beaches change
- Erosion
- Send sound waves toward the ocean floor; scientist use these to map the ocean floor
- Sonar
- Flat seafloor; formed from sediments from continental shelves and slopes filling in the hills and valleys on the ocean floor
- Abyssal plain
- Chains of underwater mountains
- Midocean ridge
- _____________ and ________________ erode shore zones.
- Waves and currents
- Flat shore zone feature; waves deposit sand
- beaches
- Ocean water that runs close and parallel to the shore; many carry sediments for many kilometers
- Longshore Current
- Place where an organism lives
- Habitat
- The first part of the ocean floor; it slopes gently
- Continental shelf
- Region where the seafloor is spreading
- Rift Zone
- A wall built perpendicular to the shore to trap sand
- Groyne
- Unwanted or harmful materials or effects to the environment
- Pollution
- Steep slope on the edge of the continental shelf
- Continental slope
- _______________ constantly change
- Shore zones
- Building towns and homes are examples of
- habitat destruction.
- Examples of how humans effect Shore Zones
-
sewage
landfills
factory wastes
agricultural runoff - Some of the deepest parts of the ocean are called
- Ocean trenches
- Water covers _____ of the Earth's surface.
- 3/4
- Where the waves collide with cliffs and rocks; can make high sprays of water
- Steep Shore Zone
- The ____________________________ are islands formed from volcanoes.
- Hawaiian Islands