Pop-up delta

The Template - You draw your own template (as below) and use for the model.

The template should be drawn on A4 card.

Cut out the template

Fold the outer flaps upwards

Cut along the two lines as far as the river edge

Fold the river edges downwards

Your model should now look like this

Fold downwards the flaps at the delta front

Colour the 3 sediment layers of the delta cross section

Colour both sides

Stick down(with cellotape) the outer flaps of the river section

Stick down the other side

Your model should now be secure, with the delta front loose

Label the delta top

Label the delta cross section

Delta features to label in book

• 1 - Distributary• 2 - Fertile delta plain• 3 - Main river channel• 4 - Top set beds (mixture of silt and

clay)• 5 - Foreset beds (pebbles and sand)• 6 – Bottomset beds (mainly clay)

Your model should be complete. Close your exercise book to test the model.