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Back up to: Curious Cases
Why don't we the first few years of our lives?
'How far up can a helium balloon go? Could it go out to space?' asks Juliet Gok, aged 9.
Why do we have different blood types? Drs Rutherford and Fry investigate.
'Why does the Earth spin?' asks Joe Wills from Accra in Ghana.
How much does the bacteria inside my body weigh?