Welcome to Science 11/29

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Welcome to Science 11/29

• Come up to the cart and carefully select a cup of
  water.

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• Weathering and Erosion

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When you think of a beach, what images pop into
your mind?
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What makes a beach/shoreline?

• 1. weathering- the breakdown of rock
• 2. erosion- the movement of weathered rock
• 3. deposition- the dropping off of weathered rock

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How does the process start?

• What do we need to begin the process of
  weathering, erosion, and deposition?
• Wave Energy
• The stronger a wave is, the more W, E, and D can
  take place.

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Putting it all together.

• Waves break down rocks along shorelines.
• The stronger the waves, the more weathering
  occurs.
• Waves transport weathered rock particles to
  different locations.
• Waves deposit the rock particles along
  shorelines, forming beaches.

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Coastal Erosion
What are the 4 ways that the sea erodes the coast
the different types of erosion?
Dont forget, weathering is also at work on the
coastline as well
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THE LANDFORMS
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Headlands and Bays

• What are they?
• How are they formed?

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Some Headlands
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And Some Bays
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Headlands and Bays Together
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How are they formed?
Its all about differential erosion!!!!!!!!
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Cliffs, Caves, Arches and Stacks.
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The Headland is Attacked!!!
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Besides beaches, what other features can waves
create?

• Sea Cliffs
• Most Dramatic Sea Cliffs in the World

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The Stages of Erosion
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Cracks Become Caves NOVA How Caves Form
Cave formation on Ballintoy coast, Ireland
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Caves Become Arches
Bob's Arches - Sea Arches
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Arches Become Stacks
Spectacular Sea Stacks
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And now.
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Wave Cut Notches and Platforms
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From Wiki
Wave cut platform at Southerndown, South Wales