HOLIDAYS PRESENTATION

Start

Coasts revision

WAVES

WAVES

WAVES

This involves both plants and animals. For example, burrowing animals such as rabbits can burrow into a crack in a rock, making it bigger and splitting the rock. Plant seeds can begin to grow in the cracks of a rock.

This occurs when weak acids in rainwater attack and break down rock surfaces.

This takes place in hot desert climates. During the heart of the day the surface of the rocks heats up and expands. At night it is cold and the rocks contract.

This takes place when water is trapped in the cracks of a rock and freezes.

onion-skin

biological

freeze-thaw

chemical

This involves both plants and animals. For example, burrowing animals such as rabbits can burrow into a crack in a rock, making it bigger and splitting the rock. Plant seeds can begin to grow in the cracks of a rock.

This occurs when weak acids in rainwater attack and break down rock surfaces.

This takes place in hot desert climates. During the heart of the day the surface of the rocks heats up and expands. At night it is cold and the rocks contract.

This takes place when water is trapped in the cracks of a rock and freezes.

onion-skin

biological

freeze-thaw

chemical

bar/barrier - beach which has grown across a narrow bay, making a lagoon

tombolo – a beach which joins an island to the mainland

bar/barrier - beach which has grown across a narrow bay, making a lagoon

tombolo – a beach which joins an island to the mainland

The rock groynes trap sand and this means that it doesn’t reach the beach further along, so the coast erodes quicker as it has less of a beach

The rock groynes trap sand and this means that it doesn’t reach the beach further along, so the coast erodes quicker as it has less of a beach

Hard engineering - this involves building structures to protect the coast. Soft engineering - this involves working with nature by using natural materials or allowing nature to take back areas.