60. THE NILE
THE NILE is the longest river in the world (6.853 km)
from East Africa to the Mediterranean. The river
provided a crucial role in the development of the
61. THE AMAZON
THE AMAZON is the largest river in the world by
volume. The Amazon and its tributaries flow
through some countries of South America before
emptying into the Atlantic Ocean.
62. THE VOLGA
THE VOLGA is the longest river in Europe and one of
Russia’s most important rivers (3.690 km).
63. THE EBRO
THE EBRO is one of the most important rivers in Spain.
It is the second longest and the biggest by discharge
volume. The source is in Fontibre (Cantabria) and it
flows into the Mediterranean Sea.
68. THE THREE STATES OF WATER
• Drinking water is water in
a liquid state.
• Ice and snow are water in
a solid state.
• Water vapour is water in a
69. WATER IN NATURE
Most water on Earth is in
the seas and the oceans. It
is called salt water because
it contains a lot of salt.
It contains very little salt.
People, animals and plants
drink fresh water.
70. WATER IN NATURE
It is fresh water found beneath
the surface of the Earth. It
forms large deposits called
Snow and ice.
Water freezes and becomes ice
and snow in cold weather. The
coldest areas on Earth are The
North Pole and The South Pole.
They are covered with giant
blocks of ice.