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Now You Know?

Amazing science facts - Did you know for children

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 fiction, sometimes!

Just one part oil per million parts water will ma...
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If you could weigh all the water that falls on a ...
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Without clouds and other constituents of the eart...
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The Pacific Ocean is three times bigger than Asia...
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Ninety seven per cent of all the water on Earth i...
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Ninety-six per cent of salt water is pure water. ...
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Ice made of salt water does not contain any salt....
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One-tenth of the Earth's surface is always under ...
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The soft sand that we sink into on the beach, is ...
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Almost a million earthquakes occur in one year. O...
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The earth has more than 600 active volcanoes. Man...
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Every day, a coral grows a new band of limestone ...
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There is enough water in the atmosphere, that if ...
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Seashell can be found in rocks high up on some mo...
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The Trans-Alaskan oil pipelines stretches 1,300 k...
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About 2,500 million people, half the world's popu...
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Not all rivers end up in an ocean. The rivers flo...
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The largest wheatfield, in Alberta, Canada, cover...
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The highest sea cliffs are on the north coast of ...
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Sound can travel through water at 1,507 m (4,945 ...
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The deeper under the sea you go, the greater the ...
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There is no land at the North Pole - it is a flo...
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At least 75 per cent of all the freshwater on Ear...
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Earthquakes under the sea can trigger off great a...
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The largest active volcano on Earth is Mauna Loa,...
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Pea crabs are the smallest crabs in the world. Th...
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Minerals are graded according to their hardness, ...
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Bouvet Island in the South Atlantic is the world'...
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At night, the surface of the Indian Ocean sparkle...
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There are no penguins in the Arctic. Penguins are...
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If divers surface too quickly after a dive, they ...
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The first successful submarine was built in the 1...
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About 6 million tonnes of salt is made from the s...
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The great auk is one of the many sea animals that...
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A Polynesian legend tells how the world was creat...
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Waterwheels were used in Rome over 2,000 years ag...
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The Cullinan, once the largest uncut diamond, was...
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Sea cucumbers look harmless but they have a drama...
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Deep-sea prawns are often bright red in colour. T...
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The first animals tamed and kept for milk and mea...
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The amount of protein produced from a field of so...
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A walrus has about 700 hairs on its snout. Each h...
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The fastest growing tree in the world is the Euca...
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A special substance found in the scales of some f...
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Out of all the fish caught in the world, about th...
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Guillemots live in huge, crowded colonies of over...
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The Portuguese man-of-war belongs to a group of j...
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Grey whales spend the summer feeding in the Arcti...
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The world's first postage stamp was the penny Bla...
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The widespread house sparrow was at one time prot...
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About 75 per cent of all wild birds die before th...
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The smallest professional theatre in the world is...
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The first motorcycle was designed and built by th...
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Without the weather to spread the Sun's heat arou...
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The light given off by a piece of the Sun's surfa...
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If all the water in the air fell at the same time...
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For centuries sailors lost at sea have used cloud...
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The Earth formed some 4,600 million years ago. So...
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Metal pipes often burst when the water inside the...
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There are about 16 million thunderstorms a year t...
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In the northern hemisphere, winds flow from west ...
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A wind that blows as fast as the fastest man can ...
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If all the enery from one hurricane in a single d...
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Temperate climates are thought to be the most ple...
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Sometimes double rainbows can form. In a single r...
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To measure sunshine, weathermen use a Campbell St...
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Sea level does not always stay the same. During t...
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Weathering is very slow. The height of some mount...
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The highest mountain on Earth is not Mount Everes...
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The ozone layer is a layer of concentrated ozone ...
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A change in climate may have been the reason for ...
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Water currents affect the Earth's climate by driv...
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The huge flightless emus of Australia's scrubland...
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The light reaching us now from our nearest star, ...
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The Sun gives off huge amounts of deadly radiatio...
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Just one square centimetre of the Sun's surface s...
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The Moon takes just over 27 days to travel round ...
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Storm petrels spend their lives far out at sea, b...
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Saturn is the second biggest planet in the Solar ...
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A person on Neptune would never live for one Nepu...
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Meteors burn up in the atmosphere and filter down...
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The longest name for any star is "Shurnarkabtishu...
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A nova (meaning "new star") is a star that sudden...
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Interstellar matter is much thinner than the air ...
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The word galaxy comes from the Greek word for mil...
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Galaxies are found in groups or clusters. Many cl...
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The familiar call of the cackoo in Europe is made...
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The first person to claim that the Earth revolves...
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Some radio telescopes, known as interferometers, ...
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In space, far from the pull of gravity of planets...
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The first living creature in space was a dog call...
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Birds bathe in water or dust to help keep clean a...
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Many parent birds use other birds without young o...
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Almost half the world's bird species are found in...
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All mammals breathe air. The distant ancestors of...
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Paraceratherium was the biggest land mammal there...
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All the pet hamsters in the world are descended f...
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Like many raptors, female sparrowhawks are much b...
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Elephants eat up to half a tonne of plant food a ...
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In 1925 Sauer, a Dobermann Pinsher, tracked two t...
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The Asian elephant has the longest tail of any la...
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Until the age of three months a cheetah cub has a...
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When two prairie dogs meet, they exchange a sort ...
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Some mammals use twigs or stones as tools. The se...
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The greatest gathering of any type of mammal take...
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Sea mammals have no fixed home in the water but s...
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The sloth is the slowest land mammal in the world...
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Bewick's swans have black and yellow faces but ea...
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The ancestors of sea mammals once lived on land. ...
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Macaques living high up in the mountains of north...
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About 5,000 years ago, the Sahara desert was cove...
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The sportive lemur gets its name because, if atta...
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In 1700, there were some 60 million buffaloes in ...
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The very rare bumblebee bat from Thailand is the ...
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The sperm whale has the heaviest mammal brain. It...
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Wheatears living in Greenland are larger than tho...
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The passenger pigeon made the most rapid disappea...
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Herons have special feathers that break up into p...
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The pink colouring of flamingos depends on the fo...
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Puffins are the only birds to moult their beaks. ...
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Many birds that feed on plants swallow stones and...
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The smallest bird in the world is the bee humming...
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Male birds with the showiest plumage and courtshi...
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Bird's nest soup is made from the nests of cave s...
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Baby birds have an "egg tooth" to help them break...
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Emperor penguins dive down to depths of 265m (870...
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