Following the Tags: teacher key

Bull Sharks, grade 10 edition, written for 10th grade. Tags and trackers show where bull sharks go. Read what each study measured, and how far the sharks travelled.

Read the book. Print this page for the key.

Questions and answers

1. How far did the shark tagged off Recife travel in 75 days?
   • About 5 kilometres
   • More than 3,000 kilometres (answer)
   • About 19 metres
2. How many bull sharks were tagged from 2005 to 2007?
   • One
   • 75
   • 18 (answer)
3. When did the young bull sharks in the river system move upstream?
   • During the day (answer)
   • At night
   • In winter
4. Why do the speed numbers in this book not match?
   • They measure different things (answer)
   • The sharks changed
   • The tags broke
5. What does residency mean in this book?
   • Swimming fast
   • Staying in one area (answer)
   • Eating fish

Words

• satellite: space-tracked
• residency: staying put
• estuary: river mouth