It's False - Famous Cambridge scientist Isaac Newton was the first to calculate the thickness of a soap bubble in his 1704 book Opticks. He realised that the rainbow colours on a bubble surface must be related to the thickness of the soap film. By comparing the bubble colours to the colours produced by two very closely-positioned pieces of glass he worked out that the soap film must be about 100nm or one ten-thousandth of a millimetre - that's a thousand times thinner than a human hair.

It's False They can only go round 270 degrees, but that’s still three-quarters of a full turn!

It's False - Cats are indeed the yanks best friend - there are 66 million of them in homes around America - but they are still outnumbered by people about 4 to 1.

It's True - The predatory bacterium "bdellovibrio", which pursues and eats other bacteria, are listed in the Guinness Book of Records as the world's fastest swimmers. Powered by a microscopic propeller called a flagellum, they can zip along at over 50 to 100 body lengths a second !

It's True - The 65 metre wingspan of a Boeing 747 is almost twice the length of the Wright Brother's first successful flight in 1903 which achieved a flight time of 12 seconds and covered 37 metres !

It's False When the ice melts the level of water will stay the same because the ice is made of water and will therefore displace the same amount of water as it turns into when it melts so the glass will not overflow.

It's False It’s the opposite way around. When a police car approaches with its siren on, the sound waves become bunched up closer together, because the car is moving. This increases the pitch, so it sounds higher. As the car goes away again the sound waves are effectively stretched out, reducing the pitch. This is known as the doppler effect and it’s also how speed cameras work.

It's False - There are 33 vertebrae - seven cervical ones in your neck, twelve thoracis vertebrae supporting the ribcage, 5 lumbar bones making up your lower back, and nine more bones making up the back of the pelvis and tailbone.

It's False – it actually stands for intelligence quotient and is used as a measure of the population’s reasoning power.

It's False Hydrogen is the most common element in the Universe – about 75% of the matter in the universe is hydrogen, but Earth’s most abundant element is oxygen, which accounts for 46% of the mass of the planet. This is followed by silicon, aluminium, iron and then calcium.