Excretory Organs
What’s the Function?
Real-World Connections
Weird & Gross Facts
Mixed Review
100

What organ filters waste from the blood?

What is the Kidney?

100

What is the main job of the excretory system?

What is removing waste from the body? 

100

What should you drink to help your kidneys stay healthy?

What is water?

100

What color is healthy urine?

What is Pale yellow?

100

Which two organs are shaped like beans?

What are the Kidneys? 

200

What tube carries urine from the kidney to the bladder?

What is the Ureter?

200

What liquid waste does the excretory system mostly get rid of?

What is the urine?

200

What happens to your urine when you’re dehydrated?

It becomes darker and more concentrated

200

True or False: You can sweat pee.

False (though sweat removes some similar waste)

200

What is the medical term for “peeing”?

What is Urination?

300

What organ stores urine until it's ready to be released?

What is the bladder?

300

How do the lungs help with excretion?

What is removing carbon dioxide?

300

Name one health condition that affects the kidneys.

What is Kidney disease / kidney stones (either is correct) 

300

What gas do we exhale as a waste product?

What is Carbon dioxide?

300

Why is sweating part of excretion?

It removes salt and water from the body

400

What is the name of the tube that urine exits through?

What is the Urethra?

400

How does the skin help with waste removal?

What is releasing sweat?

400

Why is access to clean water important for the excretory system?

It prevents dehydration and helps flush out waste

400

How many liters of blood do your kidneys filter each day?

About 50 gallons / ~180 liters

400

What is dialysis used for?

To clean the blood when kidneys don’t work properly

500

These paired organs maintain homeostasis by filtering blood, balancing electrolytes, regulating blood pressure, and producing hormones. What are they?

The kidneys

500

Explain the full process of how urine is made, from the blood to the toilet.

Blood is filtered in the kidneys → waste forms urine → urine travels down the ureters → stored in the bladder → exits through the urethra.

500

How can pollution affect the excretory system?

It can introduce toxins that damage the kidneys

500

What can happen if your kidneys stop working properly?

Waste builds up and can be life-threatening

500

What system works closely with the excretory system to carry waste?

What is the Circulatory system?