1. Depositional landforms
Sand Dunes

2. What is a Sand dune? Sand dunes are an accumulation of sand grains
They are caused when sand is deposited around an obstacle like some drift wood or vegetation
The sand is carried by the wind

3. What different types of a dune are there?
There are several types of beach sand dune.
An embryo dune
A fore dune
A yellow dune
A grey dune
A dune slack
A mature dune

4. Embryo Dune These are very small dunes
They would be built upon something small, like a stick
They do not have very much vegetation on them

5. Fore Dune Just after the embryo dune there is a fore dune
These would be built upon something larger, like a bit of drift wood

6. Yellow Dune These are bigger than the fore dunes
They are called yellow dunes due to the amount of new yellow sand on them
Some plants bigger than grass may start growing these

7. Grey Dune Grey Sand dunes are the second biggest type of sand dune
There will almost always be grass and basic vegetation on these
They will probably be made of white sand, hence the “grey”

8. Dune Slack These are low lying depressions in the sand
Often close to or lower than the water level
They contain water, this means more vegetation as there is more nutrients in the sand for more complex plants

9. Mature Dune These are the biggest type of dune
They sometimes have more complex vegetation like trees and shrubs
These are also the oldest and normally closest in land where the wind is weaker
This means sand is deposited easier without blown off

10. Human uses They have many recreational uses
They are used as wind defences
They are used for sand mining and collection
When they get bigger they are used for car rallies on “dune buggies”
The bigger ones also attract tourism