Coastal Erosion

What is Erosion?

• When waves lose energy and leave sediments / sand along a coast.
• The wearing away of land, removal of beach rocks/sand by water or wind.
• An area of land that smells different to other places.
• An area that has a lot of wind.
  

What is Deposition?

• When waves lose energy and leave sediments / sand along a coast.
• The wearing away of land, removal of beach rocks/sand by water or wind.
• An area of land that smells different to other places.
• An area that has a lot of wind.

Which of these coastal landforms are created by deposition?

• Cave
• Stack
• Beach
• Wave cut platform

Which of these coastal landforms is created by erosion?

• Cave
• Tombolo
• Beach
• Spit

What is the erosional process in which rocks are pushed by waves up against the headland, eroding the cliff face further?

• Hydraulic action.
• Abrasion.
• Attrition.
• Solution.

What is swash?

• Water that runs back into the ocean.
• Water that falls forward and moves up the shore.
• Tug of war between the drag of the wind and pull of gravity.
• Swirling of water in an area.

What is backwash?

• Water that runs back into the ocean.
• Water that falls forward and moves up the shore.
• Tug of war between the drag of the wind and pull of gravity.
• Swirling of water in an area.

What am I? I have a very strong backwash which removes material from the beach.

• A deconstructive wave.
• A constructive wave.
• The local council.

What would be the best thing to help preserve a sand dune?

• Put a sign up telling people to stop stealing stand.
• Build a sea wall.
• Beach reprofiling.
• Plant vegetation on the sand dune to hold it in place.

Waves are generated by

• wind blowing over water

• sun blowing on the sea

• tidal movements

• rotation of the Earth