Morays of Many Sizes: teacher key

Moray Eels, grade 4 edition, written for 4th grade. Meet the moray eel: its long body, its sizes, where it lives and how it breathes and eats.

Read the book. Print this page for the key.

Questions and answers

Which moray can reach 2.5 meters long, as of November 2026?
- The redface eel
- The green moray (answer)
- The California moray
Where does the green moray live?
- In snowy rivers
- In the Arctic
- In the western Atlantic Ocean (answer)
How can a moray get leverage when it eats?
- It ties its body into a knot (answer)
- It swims backward
- It lays eggs
Why does a moray keep opening and closing its mouth?
- To hunt at noon
- To move water over its gills so it can breathe (answer)
- To show its scales
A moray can back into a crevice. What is a crevice?
- A kind of food
- A kind of fin
- A narrow crack (answer)