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Why is blood red?

Why is blood red?
Chloe Smith
Nadiya Basite from Swansea (aged 5-14)
Preston Primary School Stockton on Tees (aged 5-14)

Why is your blood red?
Rosie from West Midlands (age 5-14)

Why does our blood turn red when it touches oxygen?
Autumn Marie Taylor from Kent (age 5-14)
Sherylin McCarthy from Kent (age 5-14)


One Response

  1. Blood appears red because of the pigment billirubin that is contained in the red blood cells.

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