1. What forces shape a shoreline?
A shoreline is where land and a body of water meets.
Strong waves may erode material
Gentle waves may deposit material
Oceans have currents that also erode and deposit material.
When the current travels parallel to the shoreline causing the waves to hit the shore at an angle it is called a longshore current.

2. What coastal landforms are made by erosion ?
The rate at which a rock erodes depends on the hardness of the rock and the energy of the waves.
Types of coastal landforms:
Sea Cliffs
Wave-cut Platforms
Sea Caves
Arches
Stacks

3. Sea Cliffs and Wave-cut Platforms
A sea cliff forms when waves erode and undercut a cliff’s base to make steep slopes.
A sea cliff eroded above the waterline is called a wave-cut platform.

4. Sea Caves, Arches, and Stacks
Sea Caves are formed when waves erode cracks in the sea cliff faster than other parts.
Sea Arch forms when a sea cave is eroded through the sea cliff.
Sea Stacks form when the top of a sea arch collapses.

5. What coastal landforms are made by deposition?
A beach is an area of shoreline made up of materials deposited by waves and currents.
A sandbar is an underwater or exposed ridge of sand, gravel , or shell material.
A barrier island is a long narrow island, usually made of sand that forms parallel to shoreline.