Avalanches
An avalanche is a large mass of snow that moves quickly down a mountain. It breaksloosefrom the area around it andcollectsmore and…
An avalanche is a large mass of snow that moves quickly down a mountain. It breaksloosefrom the area around it andcollectsmore and…
Between 1910 and 1970 the Australian government took 100,000 Aboriginal children away from their homes. These children, known as t…
An atom is the smallestbuilding blockof everything that exists. The smallest object you can see under a microscope has more than 1…
An atoll is a round coral reef that has a lagoon inside it. Atolls develop over a period of millions of years from sunken volcanic…
The earth is surrounded by layers of gases, our atmosphere. They are kept near the earths surface by gravity. Our atmosphere filte…
The Atlantic Ocean is the worlds second largest body of water. It makes up about a quarter of the Earths water surface. It has bee…
Running, jumping and throwing competitions are called track and field or athletics. They are probably the oldest form of sport and…
Every year in spring millions of people around the world suffer from asthma. It is a time when flowers blossom and grass is cut. A…
A wave of demonstrations and protests has been going on in many Arab countries of the Middle East and Northern Africa since the en…
The American Revolution was a war in which the13 Americancolonieswon theirindependencefrom Great Britain. It started in 1775 and e…