Beaches are found on coasts between the high water mark and the low water mark.
1 of 13
Formation of beaches TWO
They'r fomed by constructive waves depositing material like sand and shingle.
2 of 13
Sand characteristics
Sand beaaches are flat and wide- sand particles are small and the weak backwash can move them back down the beach, creating a long gentle slope.
3 of 13
Shingle characteristics
Shingle beaches are steep and narrow - shingle particless are large annd the weak backwash can't move them back down the beach. The shingle particles build up and create a steep slope.
4 of 13
Spits ONE
Spits form at sharp bends in the coastline.
5 of 13
Spits TWO
Longshore drift transports sand and shingle past the bendand deposits into the sea.
6 of 13
Spits THREE
Strong winds and waves can curve the end of the spit.
7 of 13
Spits FOUR
The sheltered area behind the spit is protected from waves- lots of material accumilates in this area, which means plants can grow there.
8 of 13
Spits FIVE
Overtime, the sheltered area can become a mud flat or a salt marsh.
9 of 13
Bars ONE
A bar is formed when a spit joins two headlands together.
10 of 13
Bars TWO
The bar cuts off the bay between the headlands from the sea.
11 of 13
Bars THREE
This means a lagoon can form behind the bar.
12 of 13
Bars FOUR
A bar that connects the shore to an island is called a tombolo.
13 of 13
Other cards in this set
Card 2
Front
Formation of beaches TWO
Back
They'r fomed by constructive waves depositing material like sand and shingle.
Comments
No comments have yet been made