This lesson teaches about landforms created by longshore drift, including bars, spits, and tombolos. By the end of the lesson, students will be able to name 3 depositional landforms, describe the process of longshore drift, and explain how it forms bars, spits, and tombolos. The lesson will include diagrams demonstrating longshore drift and how spits are formed through the movement of sediment along a coastline.

1. Lesson Objectives
This lesson is about longshore drift and how
this process creates depositional
landforms.
By the end of this lesson you will be able to:
• Name 3 depositional landforms
• Describe longshore drift
• Explain how longshore drift forms bars,
spits and tombolos

2. How is sediment transported along the coast?

3. Longshore Drift (LSD)
Draw yourself a diagram of longshore drift.
Annotate your diagram to explain how LSD works
Use the following words in your annotations:
• Swash
• Backwash
• Gravity
• Right angles
• Wind direction

4. ow are spits formed?

5. Skills Builder!
Draw a sketch of the spit
Label the spit, the
curved end and the
salt marsh
Draw an arrow to show
the direction of
longshore drift
Annotate the diagram to
explain how the spit
has formed and
developed

7. What is a bar?
If a spit joins one part of the mainland to another it is
called a bar.
For example, there is a bar at Orford Ness in Suffolk.

9. Chesil Beach, Dorset
Looking at these pictures do
you think Chesil beach is a
bar, a tombolo or a spit?