Joined: Mon Jan 03, 2005 6:48 pm Posts: 13645 Been Liked:11 times
SCIENCE FACT, OR SCIENCE FICTION
The world’s biggest hailstone was 10 cm in diameter FICTION The world’s biggest hailstone was 19cm in diameter and fell in Kansas, USA.
Hummingbirds are the only animals that can fly backwards? TRUE. No other flying animal is able to fly backwards
All animals have red blood. FALSE. Lobsters and octopuses have blue blood while insects can have colourless or light green blood.
Hydroelectric power means electricity generated by wind – FALSE – That’s windpower – hydroelectric energy is electricity produced by water.
Diamonds are made out of the exactly the same substance as your pencil lead – FACT. Both diamonds and pencil lead or graphite are made out of just the single element carbon.
Fish have gills to help them breathe underwater – TRUE – They pump water over their gills which pick up the small amounts of oxygen dissolved in the water and pass it into the fishes bloodstream.
There is the same amount of gravity on the moon as there is on earth – FALSE – The moon is smaller than the earth so it has less gravity. This means that you weigh less and can jump higher !
The Great White Shark is the biggest fish in the sea? FALSE. The biggest fish in the world is the whale shark, which eats tiny plankton and grows up to 15m long. The next biggest is the basking shark, which you can see in the waters around Britain.
In a right angled triangle one of the angles must be 90 degrees – TRUE – and all of he angles added together must come to 180 degrees.
A decidious tree keeps its leaves in winter – FALSE – Evergreen trees – like firs, pines or holly keep their leaves in winter. Deciduous trees lose their leaves in autumn and stop trains from getting where they need to go.
Male seahorses give birth to 10,000 live babies? TRUE. Instead of the female being pregnant, male seahorses look after their babies in a brood pouch while they grow up.
The air underneath the wings of a moving aeorplane is faster than the air on top FICTION The air underneath the wings is slower, so it has a higher pressure and can provide lift for the plane.
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