https://padlet.com/list4/awcn0j9hg3awfpqn Write down everything you can remember about the formation of sand dunes. Include lots of key terms in your response en-us 2021-01-13 08:28:50 UTC 2021-01-14 02:48:41 UTC hello@padlet.com https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612597 Conditions needed for sand dunes to form:
Little vegetation
A lot of loose sand
Inland/Marine Winds
Something that destroys the momentum of the sand moving

Sand dunes are genrally found at back of beachs
Where wind-blown sand accumulates behind beaches due to the marine and inland winds pushing against each other

Different layers of sand dunes:
Embryo Dunes
Fixed Dunes
Shifting Dunes


Accretion: the process of growth by slowly accumulating something

Different Areas:
Dune
Beach
Subtidal Beach

]]> 2021-01-14 02:42:12 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612597 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612740 Sand dunes - small ridges or hills found at the back of the beach

Conditions needed
- it needs a large amount of loose sand with low amount of vegetation
- Wind strong enough to move the sand
- An obstacle which stops the sand 

Vegetation helps the dunes as the roots hold the sand together and prevents it from breaking

Embryo dunes form first]]> 2021-01-14 02:42:19 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612740 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612763 They usually form along beaches or deserts.
Not a lot of vegetation
Formed by the wind]]> 2021-01-14 02:42:20 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612763 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612849 The conditions needed for sand dunes:

marine wind blows sand and using idk the name transportation as well as inland winds. They blow sand until they collide with a object like drift wood which stops them from moving. As sand builds up it makes a small dune embryo. Fore dunes will form and slowly move inland and small plants will grow on the dunes creating stability]]> 2021-01-14 02:42:23 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612849 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612902 - Sand dunes - hills which form at the back of a beach. formed due to wind blowing sand. 
-  Needs an obstruction (blocking the deposited sand) e.g. driftwood to form

]]> 2021-01-14 02:42:25 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612902 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612926 Small hills found at the back of beach. 
large amount of loose sand
low amount of vegetation 
inland winds
only salt tolerant plants can grow
obstacles like plants slow down the wind carrying sand

]]> 2021-01-14 02:42:26 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612926 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612975 sand dunes require a lot of loose sand and strong winds to form. they create large hills/dumps of sand at the back of a beach. they also need solid obstacles to be able to form around

]]> 2021-01-14 02:42:29 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085612975 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613230 vegetation growth on sand dunes helps because the roots of the plants hold together the sand 

sand dunes form when wind blows sand into a sheltered area ]]> 2021-01-14 02:42:34 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613230 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613265 types of sand dunes: 
embryo dune, fore dune, yellow dune, grey dune, dune slack and 
what do they need?
sandy areas with little vegetation 
wind to move the sand
a rock or an object ]]> 2021-01-14 02:42:35 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613265 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613280 Sand dunes is when hills are found at the back of the beach and they form when wind is blown onto the sand.
types of sand dunes:
fore dune, yellow dune, grey dune, dune slack and embryo dune


]]> 2021-01-14 02:42:36 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613280 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613553 the wind carries cand with the process of saltation.
plants and rocks(obstacles/ barrier) catch the  sand that is blown by the wind .
only salt tolerant plants grow - grass
roots protect the sand dune from erosion.
there is a embryo, fixed dune and a shifting dune.
large amounts of sand but still contains small amounts of vegetation


]]> 2021-01-14 02:42:48 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613553 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613898 Small hills found at the back of beaches.
- Requires large amount of sand with little vegetation
- Onshore winds
- An Obstacle that stops the momentum of the moving sand and causes it to settle ]]> 2021-01-14 02:43:03 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085613898 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085614431 Requires 2 things to form:
1. large amount of sand in loose area with little amount of vegetation
2. wind or breeze
3. an obstacle

Sand dunes: small ridges or hills found at the back of the beach.

]]> 2021-01-14 02:43:30 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085614431 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085614982 Conditions for sand dunes to form are:
a large amount of loose sand in an area with little vegetation
a wind or breeze to move the grains of sand (onshore)n - marine wind
an obstacle that causes the sand to stop]]> 2021-01-14 02:43:56 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085614982 Ed_Smith123 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085615957 they need lots of loose sand with little vegetation
marine wind 

]]> 2021-01-14 02:44:39 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085615957 https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085617697 Needs lots of sand with little vegetation as well as wind that blows the sand up]]> 2021-01-14 02:46:05 UTC https://padlet.com/list4/awcn0j9hg3awfpqn/wish/1085617697