Reading the Water: teacher key

Hammerhead Sharks, grade 5 edition, written for 5th grade. A hammerhead shark has a wide head and eyes at its ends. Learn how big the great hammerhead gets, where it swims and how its pups are born.

Read the book. Print this page for the key.

Questions and answers

1. What did the longest great hammerhead reported measure?
   • 610 centimeters (answer)
   • 449.5 centimeters
   • 50 centimeters
2. How long does a mother scalloped hammerhead carry her pups?
   • About a week
   • 9 to 10 months (answer)
   • 3 years
3. What kind of water are great hammerheads usually found in?
   • 1 to 100 meters deep (answer)
   • 1,000 meters deep
   • Only shallow puddles
4. Which sentence fits the facts best?
   • Hammerheads live in cold seas only
   • Great hammerheads stay in one place all year
   • Great hammerheads can be near shore or far out at sea (answer)
5. What does the word migrate mean here?
   • To travel with the seasons (answer)
   • To lay eggs
   • To grow a notch

Words

• cephalofoil: wide hammer head
• ampullae: electric sense organs
• migrate: travel with seasons
• crustaceans: crabs and kin