Wednesday 7 December 2016

Kilcullen Voyagers Lesson 1: There is only one ocean

Published 04/11/2016 | 17:06

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The Experiment

Method

Take a large deep tray, place seven stones in it to represent the Continents of the world – Europe, Asia, Africa, North America, South America, the Arctic and the Antarctic and pour in enough tap water to cover the base of the tray.

Then, pour a few drops of vegetable dye into the water at the centre of the tray.

As you watch, you will see the dye spread outwards and eventually reach every part of the tray, just as pollution in one ocean can reach any part of the world.

tray-experiment.jpg  

Aim/Learning Objective

Even though ancient mariners talked of ‘Sailing the Seven Seas’, there really is only ONE ocean with connections between every part.

This is why pollution in the North Atlantic can spread to the South Atlantic and from there to the Mediterranean, the North and South Pacific Oceans, the Indian Ocean, the Arctic and Antarctic.

Materials

● Bowl or large plastic tray.

● Seven flat stones.

● Vegetable dye.

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