Journeys: Kidneys. Stop 2

Give back the good stuff

Useful things got into the tube along with the rubbish. Grab water, sugar and salt and throw them back into the blood! Let the rubbish float on.

Back it goes! The kidneys take back almost all the water and all the sugar.

That is rubbish. The body does not need it, let it float on.

What is left is a little water with rubbish. That is wee!