Friday, June 10, 2016

Our watery world

On the world map, you can see that water covers more than two thirds of our world. Imagine you were an alien in a spaceship! When you first caught sight of Earth you would probably name it 'Watery Plant'.
The world's water is divided into large areas called oceans. The biggest ocean is the Pacific Ocean. It separates North and South America from Asia and Australia. It is so big that all continents could fit into it. The second biggest ocean is the Atlantic. The third largest ocean is called the Indian Ocean. The fourth ocean in size is the icy Arctic Ocean around the North Pole.
The water around the bottom of the world are sometimes called the Antarctic Ocean. But these waters are really the southern parts of the Pacific, Atlantic and Indian oceans.
The waters of the oceans mix together. They are all parts of one world oceans. You can see this on the map. The dividing lines, or borders, between oceans are shown in red. For example, the border between the Pacific and Atlantic oceans is an imaginary line running down from the tip of south America. Can you see the other oceans borders?
Oceans cover big areas. Each ocean contains smaller areas called seas. Seas are partly surrounded by land. Gulfs are large inlets of the oceans. Bays are smaller inlets. Straits are narrow strips of water. They link larger parts of the oceans.

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