Kidneys
Your two kidneys sit at the back of your body, just above the waist. Blood flows through them all the time, and they clean it: they take out waste and extra water, which become urine. Urine flows down two thin tubes into the bladder, which stores it until you go to the toilet.
Depth 1 · Foundation
You know that the two kidneys clean the blood, turning waste and extra water into urine that is stored in the bladder, and how to look after them.
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Foundation
You know that the two kidneys clean the blood, turning waste and extra water into urine that is stored in the bladder, and how to look after them.
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