From Food to Toilet: teacher key

Poop and Pee, grade 5 edition, written for 5th grade. Follow food down one long tube to poop, and follow blood through the kidneys to pee. Find out what makes poop brown, what makes pee yellow, and what your colors can tell you.

Read the book. Print this page for the key.

Questions and answers

1. What makes pee yellow?
   • A pigment called urobilin (answer)
   • Bile
   • Spit
2. What gives poop its brown color?
   • Acid from the stomach
   • Bile from the liver (answer)
   • Urobilin from the kidneys
3. What is chyme?
   • A thick mix of food and stomach juices (answer)
   • A tube that leads to the bladder
   • A kind of pigment
4. Pee looks dark yellow. What does that most likely mean?
   • There is less water in it (answer)
   • The bladder is a balloon
   • Poop is brown
5. What carries pee from the kidneys to the bladder?
   • The ureters (answer)
   • The rectum
   • The glomerulus

Words

• bile: liver fluid
• chyme: thick food mix
• urobilin: yellow pigment
• pigment: coloring
• peristalsis: squeezing along