| Question | Answer |
| two organs in your body that clean the blood | kidneys |
| part of the kidneys that actually clean the blood | nephrons |
| take the liquid waste from the kidneys to the bladder | ureters |
| hold the urine until the brain says you can go to the bathroom | bladder |
| where the urine exits the body | urethra |
| How many ureters do you have? | 2 |
| How many urethra do you have? | 1 |
| What would happen to your body if the kidneys stopped working? | your blood would be full of poison |
| How many kidneys do you have? | 2 |
| Could you live with just one kidney? | yes |
