Did you Know?

Amazing facts for kids about our planet and how we live our lives -- facts that are stranger than fiction! Prepare to be amazed, because truth can be stranger than fact, sometimes!

The widespread house sparrow was at one time…

The widespread house sparrow was at one time protected by law. It was deliberately introduced to other continents from Europe. But its spread was too successful. It bred so rapidly that by the time the law was withdrawn, it had already become a pest.

Weathering is very slow. The height of some…

Weathering is very slow. The height of some mountains is lowered by about 8.6 cm (three and a half inches) every 1,000 years. At this rate a mountain only as tall as the Eiffel Tower would take over three million years to wear right...

For centuries sailors lost at sea have used…

For centuries sailors lost at sea have used clouds to guide them to land. Fleecy clouds on the horizon often form above islands.

Waterwheels were used in Rome over 2,000…

Waterwheels were used in Rome over 2,000 years ago to grind corn. Water power is still used in parts of the world.

The first successful submarine was built…

The first successful submarine was built in the 1620s by a Dutch inventor, Cornelius van Drebbel. It had a wooden frame covered with greased leather and was rowed with the help of 12 oars. The biggest submarines today are Russian nuclear submarines. Larger than...

At night, the surface of the Indian Ocean…

At night, the surface of the Indian Ocean sparkles with light. The light is made by tiny sea plants called dinoflagellates. Large numbers of the plants give off enough light for you to be able to read. The lights sometimes form the shape of...

To measure sunshine, weathermen use a Campbell…

To measure sunshine, weathermen use a Campbell Stokes sunshine recorder. This is a glass ball which concentrates sunshine on to a thick piece of card. The sunshine burns a mark on the card which shows the number of hours of sunshine in the day.

If all the water in the air fell at the same…

If all the water in the air fell at the same time, it would fill enough buckets to reach from the Earth to the Sun 57 million times.

The light given off by a piece of the Sun’s…

The light given off by a piece of the Sun's surface the size of a postage stamp is more than five hundred 60-watt light bulbs. It could light all the rooms in 48 average-sized homes.

Sea level does not always stay the same…

Sea level does not always stay the same. During the last Ice Age, 18,000 years ago, sea level was about 122m (400ft) lower than it is today. It was possible to walk between England and France. Since then, the sea level has risen by...

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