Can you help the fish get to the other side of the dam using the fish ladder? Answer the questions correctly to move up each step! A Game by Megan Podlogar start
In what stage of a salmon’s life does it swim upstream? adult smolt
CORRECT! next question next question
No, the stage of a salmon’s life when it swims upstream is adult. try again try again
How many stages in a salmon’s life? three six
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No, there are six stages in a salmon’s life. try again try again
What is the word for a voyage that salmon embark on from their birthplace in their home streams out to the ocean and back again? migration spawn
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try again try again No, migration is a voyage that salmon embark on from their birthplace in their home streams out to the ocean and back again.
What is the downstream portion of a dam called? tailrace spillway
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try again try again No, the downstream portion of a dam is called the tailrace.
Salmon in the Northwest are becoming extinct because of dams preventing fish migration. true false
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try again try again No, it’s true that salmon in the Northwest are becoming extinct because of dams preventing fish migration.
What is the term for a lift that mechanically brings fish up to the top part of the reservoir? intake rack intake rack fish elevator fish elevator
YOU WON! Your expertise has helped you engineer a way for this little salmon to get over the dam!
try again try again No, fish elevator is the term for a lift that mechanically brings fish up to the top part of the reservoir.
When mature, an adult salmon returns to its birthplace to _____. spawn eat
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try again try again No, when mature, an adult salmon returns to its birthplace to spawn.
A female salmon lays ________ eggs in a nest she digs in stream bed gravel thousands of thousands of
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try again try again No, a female salmon lays thousands of eggs in a nest she digs in stream bed gravel.
In which stage of a salmon’s life does it swim downstream towards the sea? smolt alevin
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try again try again In the smolt stage of a salmon’s life, it swims downstream towards the sea.
What do we call the physical act of a salmon swimming past a dam? egress spillway
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try again try again No, the physical act of a salmon swimming past a dam is called egress.
What is the term for human-made steps up a dam that act like a series of natural waterfalls, which help salmon cross the dam? fish ladder fish ladder fish elevator fish elevator
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try again try again No, a fish ladder is a set of human-made steps up a dam that acts like a series of natural waterfalls, helping salmon cross the dam.
Which of the words below is one of the life stages of a salmon? alevin tadpole
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try again try again No, alevin is one of the life stages of a salmon.
Sound or light diversion devices help fish that are swimming ___________. upstream downstream
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try again try again No, sound or light diversion devices help fish that are swimming downstream by keeping them away from turbine intakes.
What is the reproduction process of a salmon called? spawning budding
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try again try again No, the reproduction process of a salmon is called spawning.
Intake screens prevent fish from getting caught in ______ when swimming downstream. seaweed turbine intakes turbine intakes
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try again try again No, intake screens prevent fish from getting caught in turbine intakes when swimming downstream.
Newly hatched salmon swim upstream to find food. true false
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try again try again No, newly hatched salmon stay in the nest and get food from a food sac that is attached to them. (Answer: false)
What is the term for a boat that collects fish and carries them over a dam to deposit them on the other side? bypass barge bypass barge fishing boat fishing boat
YOU WON! Your expertise has helped you engineer a way for this little salmon to get over the dam!
try again try again No, a bypass barge is a boat that collects fish and carries them over a dam to deposit them on the other side.
When an engineer designs a dam, s/he considers how it will affect the fish swimming both downstream AND upstream. true false
YOU WON! Your expertise has helped you engineer a way for this little salmon to get over the dam!
try again try again No, it is true that when an engineer designs a dam, s/he considers how it will affect the fish swimming both downstream AND upstream.