Four Pounds of Fish: teacher key

Red-Bellied Piranhas, grade 3 edition, written for 3rd grade. How big does a red-bellied piranha grow, and how long does it live? Read about its size, its food and its eggs.

Read the book. Print this page for the key.

Questions and answers

1. How long does a red-bellied piranha grow?
   • About a mile
   • About a foot (answer)
   • About an inch
2. How much can one weigh?
   • Up to 4 pounds (answer)
   • Up to 40 pounds
   • Up to 4 ounces
3. What shows that piranhas eat more than meat?
   • They live in rivers
   • They have red bellies
   • They also eat plants and fruit (answer)
4. What do the males build?
   • Boats
   • Nests (answer)
   • Towers
5. Where are the eggs stuck?
   • To plants under the water (answer)
   • To rocks on land
   • To a tree
6. What are shoals?
   • Rivers
   • Kinds of tooth
   • Groups of fish (answer)

Words

• shoals: fish groups
• weigh: be this heavy
• insects: small bugs