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Ocean Shore Zones

Ocean Shore Zones. Explain how waves, currents, tides, and storms affect the geological features of the ocean shore zone. Beaches. The shoreline, or coast, is the area where the land meets the ocean. Some shorelines are rocky. Shorelines made of sand are called beaches.

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Ocean Shore Zones

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  1. Ocean Shore Zones Explain how waves, currents, tides, and storms affect the geological features of the ocean shore zone

  2. Beaches • The shoreline, or coast, is the area where the land meets the ocean. • Some shorelines are rocky. Shorelines made of sand are called beaches. • Shorelines are always changing because of wind and _water. • Waves can wear away the land and expose a rocky shore or the waves can deposit sand along the shore and form a beach

  3. Currents, called long-shore currents, along the shoreline can move sand from one area to another. • Tides can bring sand, shells, and ocean sediments at high tide and leave them behind when the tide goes out. • Storms can cause wave action that remove sand from beaches.

  4. Barrier Islands • Islands are pieces of land surrounded by water on all sides. • An Island that blocks the main land, and has sandy beaches is called a barrier island. • Barrier Islands are naturally occurring and function to block the mainland from the effects of waves on its shore. • As the waves deposit sand on the beaches, the shape of the barrier island changes. • Currents can move the sand from one end of the island to the other.

  5. Estuaries • All rivers flow into the oceans. • The area where a river meets the ocean is knows as an estuary. • Estuaries have a mixture of freshwater and saltwater. • Waves can deposit sand in the estuaries. • At high tide, ocean water brings in sediments and sea life that feed and nourish life in the estuary.

  6. Inlets • Inlets are the water filled spaces between the barrier islands • As the tides change, the inlet will change. • Ocean currents and storms can change the shape of an inlet opening

  7. Think back…. • List the natural disasters we studied in the last unit. • How will these effect the different ocean shore zones?

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