Key Stage 1 geography · Human and physical geography

KS1 coasts, seas and oceans: a guide for parents

Geography in Years 1 and 2 starts with words. Children are taught to use basic geographical vocabulary for key physical features, the parts of the world made by nature rather than by people. This guide covers the coastal words on the national list: beach, cliff, coast, sea and ocean. Knowing exactly what each one means lets children describe places clearly, and it prepares them for later work on rivers, mountains and the way the land is shaped.

Coasts, seas and oceans, explained

The coast is the edge of the land where it meets the sea. It is a line on a map rather than a single place, and everything along that line belongs to it: beaches, cliffs, rocks, harbours and seaside towns. A beach is the stretch of loose material at the water’s edge, such as sand, shingle or pebbles, that waves have piled up. Not every beach is sandy. Many around Britain are made of pebbles, and that is worth saying aloud when your child calls every seaside place “the beach”.

A cliff is a steep, high face of rock, usually where the land drops sharply down to the sea or the beach below. Children learn that waves and weather slowly wear rock away, which is why some cliffs are crumbly and why there can be fallen rocks at the bottom. They are not expected to use the word “erosion” at this age. The simple idea that the sea changes the coast over time is enough. A cliff is not the same as a hill, which slopes more gently so that you can walk up it. Most of the cliffs your child meets will be at the coast, although cliffs can be inland too.

Seas and oceans are both very large areas of salt water, and oceans are the biggest of all. A sea is usually smaller and lies close to, or partly surrounded by, land. Seas have names: the North Sea lies to the east of Britain and the Irish Sea lies between Great Britain and the island of Ireland. To the west is the Atlantic Ocean. In Key Stage 1 children are expected to know that an ocean is bigger than a sea, to use both words correctly, and to spot them on maps and globes, where water is usually shown in blue. The names and number of the world’s oceans are taught alongside atlas and globe work.

Most teaching is picture based. Children look at photographs, videos and books, sort pictures into piles, label diagrams of a coast and use the new words in spoken and written sentences. Schools near the sea may take a trip, while inland schools rely more on images and stories. Because these are physical features, they sit beside the human features children learn at the same time, such as harbours and ports, and beside work on weather and the seasons. Those topics have their own guides, so here the focus is on being precise with five key words.

Words your child will hear

Coast: The edge of the land where it meets the sea.
Beach: A strip of sand, shingle or pebbles beside the sea.
Cliff: A tall, steep face of rock, often next to the sea.
Sea: A large area of salt water, smaller than an ocean, such as the North Sea.
Ocean: The biggest areas of salt water on Earth, such as the Atlantic Ocean.
Shingle: Small rounded stones and pebbles that cover some beaches.
Physical feature: Something in the landscape made by nature, not built by people.

What the National Curriculum says

The programme of study for Key Stage 1 says:

Pupils should be taught to use basic geographical vocabulary to refer to: key physical features and key human features
Key physical features, including: beach, cliff, coast, forest, hill, mountain, sea, ocean, river, soil, valley, vegetation, season and weather

Objectives from the National Curriculum in England, © Crown copyright, used under the Open Government Licence v3.0.

Try it: describing a coastal picture

Your child is shown a photograph of a seaside place and asked to describe it using geography words. Their first attempt is: “It is a big blue water with sand and a high hill with lots of rock.” How can it be improved?

Find the vague words: “big blue water”, “sand” and “high hill”. Ask which exact geography word could replace each one.
The “big blue water” is salt water stretching to the horizon beside the land, so “sea” is a good word. Whether it is a sea or an ocean depends on where the place is, and a map or globe would tell you. A photograph alone cannot.
The sand is the strip beside the water, where the sea meets the land. That is a beach. If it were made of pebbles it would still be a beach.
The “high hill with lots of rock” has a steep face that drops straight down towards the beach. A hill would slope, so the correct word is cliff.
Where the land and the sea meet along the whole picture is the coast. Now put the words into a clear sentence or two.

“The photograph shows a coast. A sandy beach lies beside the sea, and a tall cliff rises up behind it.”

Common mistakes and how to help

Using “coast” and “beach” to mean the same thing

Families say “let’s go to the beach” for any day out by the sea, so children hear the two words used for the same place.

What helps: Show the coast as a line on a map and trace it with a finger. Then point out that a beach is one kind of place along that line, and that cliffs, rocks and harbours are on it too.

Thinking sea and ocean are just two names for the same thing

In stories, songs and everyday speech the words are swapped freely, so children have no reason to treat them differently.

What helps: Explain that oceans are the very biggest areas of salt water and seas are smaller. Find the North Sea and the Atlantic Ocean on a map or globe and compare how much space each takes up.

Believing all beaches are made of golden sand

Holiday pictures and sandcastle books nearly always show sand, so it feels like part of the definition.

What helps: Collect pebbles and shells on a visit, or look at photographs of pebble and rocky beaches, and sort what each beach is made of. A beach is defined by where it is, not by the sand.

Calling any big hill or rock a cliff

Both are high and made of rock, and children describe what is impressive rather than what shape it has.

What helps: Use hand movements: slope a flat hand for a hill, and hold it straight up for a cliff face. Ask whether you could walk up it or whether it drops away steeply.

How to help at home

Sort seaside photographs. Look through holiday photographs, library books or magazines with your child and name what you see: coast, beach, cliff, sea, ocean. Ask them to explain why a picture shows a cliff and not a hill.
Make a small beach in a tray. Pile damp sand or soil at one end of a deep tray and tip it so there is a slope. Pour a little water in at the low end outdoors and watch how the “sea” and the “beach” meet. Ask your child to point to the coast.
Pebble and shell sorting. If you visit the seaside, sort a handful of pebbles and shells on the beach by size, colour or texture, then put them back, as taking stones from beaches is not allowed in many places. Stay with your child, keep back from the water’s edge and away from the foot of cliffs. Talk about whether the beach was sand, shingle or rock.
Trace the coast on a map. Find a map of the United Kingdom and trace the coast with a finger or a piece of wool. Name the seas and the ocean around it together, and notice that blue shows the water.

Leads on to

Key Stage 2: Climate zones, biomes and vegetation belts
Key Stage 2: Rivers and the water cycle
Key Stage 2: Mountains
Key Stage 2: Volcanoes and earthquakes
Key Stage 2: Settlements and land use
Key Stage 2: Economic activity and trade
Key Stage 2: Natural resources