Beaches and Dunes (Answer Sheet) Beaches Beaches are strips of land at the edge of the sea. They are made up of sand, pebbles and boulders. Waves wear away cliffs, arches and large pieces of rock. The waves break then in to small pieces. Beaches can also have manmade materials in them such as bricks and glass. Sand Dunes Wind moves the sand on beaches. It gets stuck behind stones, pieces of wood and rubbish. Eventually the sand piles up in to hills called sand dunes. Longshore Drift This is when pebbles and sand move along the beach in a zigzag pattern. They are moved by the sea. They can be moved a long way; up to 300kms. Longshore drift can cause problems. Beaches can be washed away. Some beaches have to have diggers bring in new sand. Groynes are used to stop the sea moving the sand. Spits and Bars Sand and pebbles moved by the sea can be dropped. If they are dropped in the same place over a long time they can pile up and build a ridge across the water. This is called a spit. If the spit gets bigger and joins to another piece of land it is called a bar. Chesil Beach in Dorset is Europe’s longest bar. Beaches and Dunes (Pupil Sheet) Beaches Beaches are strips of land at the edge of the_____. They are made up of sand, __________ and boulders. Waves wear away cliffs, arches and large pieces of rock. The waves break then in to small pieces. Beaches can also have manmade materials in them such as_______ and glass. Sand Dunes Wind moves the sand on beaches. It gets stuck behind _____, pieces of wood and rubbish. Eventually the sand piles up in to hills called sand________. Longshore Drift This is when pebbles and sand move along the beach in a _____pattern. They are moved by the sea. They can be moved a long way; up to 300kms. Longshore drift can cause problems. Beaches can be _________away. Some beaches have to have diggers bring in new sand. __________are used to stop the sea moving the sand. Spits and Bars Sand and pebbles moved by the sea can be dropped. If they are dropped in the same place over a long time they can pile up and build a _______across the water. This is called a _______. If the spit gets bigger and joins to another piece of land it is called a bar. Chesil Beach in Dorset is Europe’s longest bar. Fill in the missing words using the list below: Sea pebbles Bricks Stones washed spit dunes Groynes zigzag ridge