Home learning focus

Learn about the five oceans of the world, ocean currents, and pollution.

This lesson includes:

  • one animation about the five oceans of the world

  • one short film showing ocean life

  • one short film investigating the impact of pollution in the deep sea

  • three activities to build on your knowledge


Oceans of the world

There are five oceans in the world. Together they cover more than 70 per cent of our planet, and they are all connected together. The oceans are:

  • the Atlantic Ocean
  • the Pacific Ocean
  • the Indian Ocean
  • the Southern Ocean
  • the Arctic Ocean

The nearest ocean to the UK is the Atlantic Ocean. It stretches from Europe to North and South America, and is the second largest of the five oceans.

Sue Venir is on a beach by the Atlantic Ocean. Watch this short animation to find out more about oceans!

Learn about oceans with Sue Venir.

What are ocean currents?

The water in the oceans is constantly moving in patterns called currents. Some currents flow quickly, while some move very slowly. As the currents flow around the planet they move cold and warm water from one place to another, changing climate and temperatures all over the world. The UK would be much colder if it wasn’t warmed by water that travels all the way from the Caribbean, in a current called the North Atlantic Drift.

The ocean currents also help move anything that floats in them. This can be sea creatures or ships, but unfortunately it also carries rubbish that has been dumped carelessly by people. This rubbish finds its way around the world, pollutes the oceans and can be harmful to sea life. Some kinds of rubbish, such as plastic, are eaten by sea creatures. This causes them lots of problems and can even kill them.

We need to look after our planet by recycling and reducing the plastics we use.

Watch this short film to see some incredible ocean life in action.

Learn more about ocean life.

Watch this short film from the BBC series, Blue Planet Live, in which Marine Biologist Diva Amon investigates the human impact of pollution in the deep sea, and how deep sea mining is threatening to destroy valuable habitats.

Marine Biologist, Diva Amon investigates how we are affecting the deep sea.


There are lots of fun things to do to help you remember what you've learnt about oceans.

Here are a few you could try.

Activity 1


How much have you learnt about oceans? Test your knowledge with this five question multiple choice quiz.

Activity 2

Colour in the oceans

For this activity you will need coloured pencils.

Colour in the five oceans of the world on the map.

Download the activity sheet below provided by Britannica Digital Learning.

Colour in oceans activity sheet

Activity 3

Oceans reading comprehension

Read all about the layers of the ocean and complete the questions in the activity sheet below provided by Twinkl.

Oceans reading activity sheet

Where next?

In this lesson you have learnt about oceans.

Click on the link below to continue learning about oceans.

Blue Planet: Live lesson

Guided by CBBC's Naomi Wilkinson and expert wildlife biologist Lizzie Daly, we explore what constitutes a healthy ecosystem and discuss the threats to our oceans such as plastics and overfishing.

There's more to learn

Have a look at these other resources around the BBC and the web.

More lessons for Year 4 and P5
KS2 Geography on BBC Bitesize
KS2 Geography on BBC Teach
Deadly 60 - Ecuador Oceans
How well do you know our oceans?
Make a wave painting!
Oceans flashcards