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Geologic Features of the Ocean Shore

Geologic Features of the Ocean Shore. Landforms Unit Indicator 5-3.4 5 th Grade. Beaches. Waves: Can wear away land and expose rocky shore Can deposit new sand Currents: Move sand from one location to another Tides: Bring in sand, shells, and ocean sediments. What are beaches?.

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Geologic Features of the Ocean Shore

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  1. Geologic Features of the Ocean Shore Landforms Unit Indicator 5-3.4 5th Grade

  2. Beaches • Waves: • Can wear away land and expose rocky shore • Can deposit new sand • Currents: • Move sand from one location to another • Tides: • Bring in sand, shells, and ocean sediments

  3. What are beaches?

  4. Effects of tides on Shore Line These logs were washed ashore by tides after a storm. What are some things that you have seen on the beach before that are an effect of tides on our shore line?

  5. Barrier Islands Barrier Island before and after a hurricane. • Waves: • Deposit sand on beaches and change the shape of barrier islands • Currents: • Move sand from one end of the island to the other

  6. What are barrier islands?

  7. Estuaries All rivers flow into the ocean. The area where a river meets the ocean is an estuary. • Waves: • Deposit sand in the estuaries • At high tide, ocean water brings in sediments and sea life that feed and nourish life in the estuary.

  8. What are estuaries?

  9. Inlets Inlet opening before and after a hurricane. • Tides: • As tides change the amount of water will change • Currents and Storms: • Change the shape of an inlet opening

  10. Important Points • Currents along the shoreline can move sand from one location to another. These are known as longshore currents. • Barrier Islands are naturally occurring and function to protect the mainland from the effects of waves on its shore. • Estuaries have a mixture of freshwater and saltwater. • Inlets are the water filled spaces between the barrier islands.

  11. Credits All pictures in this PPT came from www.google.com All videos in this PPT came from www.unitedstreaming.com

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