Eyes on the Reef: teacher key

Barracudas, grade 5 edition, written for 5th grade. A great barracuda finds its food mostly by sight. Read about its eyes, its ambush and the oceans where it lives.

Read the book. Print this page for the key.

Questions and answers

1. How does a great barracuda find its prey?
   • Mostly by sight (answer)
   • Mostly by sound
   • Mostly by touch
2. Where have great barracudas been found?
   • Only in the Red Sea
   • In the Atlantic, Indian and Pacific Oceans (answer)
   • Only near Alaska
3. At about what age can a female first breed?
   • 2 years
   • 14 years
   • 4 years (answer)
4. A barracuda is dark on top and light underneath. Why might this help when it lies in wait?
   • It is harder to see in the water (answer)
   • It makes the fish warmer
   • It lets the fish dive deeper
5. What does herd mean in: it herds schools of fish into shallow water?
   • Eat quickly
   • Drive them together (answer)
   • Hide from

Words

• ambush: wait and surprise
• herd: drive together
• dorsal: on the back
• breed: have young