1. TROUT IN THE CLASSROOM

2. KWL Chart
Before you begin your research, list details in the first two columns. Fill in the last column after completing your research.
What I Know
What I Want to Know
What I Learned (after completing your research)

3. Glossary
Eyed egg
First noticeable stage of egg development.

4. Glossary
Yolk sac
Attached food supply for newly hatched fry (young fish.)

5. Glossary
Alevin
Young fish that still has the yolk sac attached.

6. Glossary
Fry
General term for young fish.

7. Glossary
Spawn
The release of eggs for fertilization in the water.

8. Glossary
Redd
Gravel nest dug by a female trout for the purpose of laying her eggs.

9. Trout Life Cycle
Trout spawn in gravel stream bottoms. The female digs a redd with her body and deposits eggs. The eggs are covered with gravel.
The eggs develop and hatch into alevins.
Alevins remain in the gravel. They obtain nourishment from their yolk sacs.

10. Trout Life Cycle
When the sacs are consumed, the tiny fish, called fry, swim out of the gravel to find food. They stay near the stream bank where the water is calmer until they grow bigger.
As they grow, they move to the main current of the stream. They feed on insects and small animals that live in or fall into the stream.

11. Trout Life Cycle
Trout mature at age three and rarely live past the age of five.
Some trout may live in lakes, but often return to streams to spawn.

12. Trout Journal
As you observe the trout you will make sketches and record all your observations, thoughts and questions in your field journal.
Questions:
What do I see?
What is the condition of the water in the tank? Temperature?
Do I see anything that surprises me?