by How It Works Team · 22/07/2014
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Why do we eat chocolate eggs at Easter?
Why did the sabre-toothed cats go extinct?
Why are most people right-handed?
What is orange juice ‘from concentrate’?
Why does polar bear fur sometimes look yellow or green?
Did American football derive from rugby?
Why does cling film cling?
What were the Salem witch trials?
Does space have a sound?
How did the sun form?
Do astronauts still have to be quarantined when they return to Earth?
Why do people put chains on tyres in snowy weather?
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