Why Do Salmon Swim Up Rivers?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do salmon swim up rivers?

The Big Idea

Many salmon hatch in a river, swim out to the ocean to grow, and then return to the river where they were born! They go home to lay their eggs. Then the next generation begins.

Born in a River

Step one: a river birth. Salmon eggs are laid in a nest in the river's gravel. They hatch into tiny fish that grow in the stream before swimming toward the ocean.

Ocean Adventure

Step two: grow in the ocean. In the sea, salmon find lots of food and grow much bigger, sometimes for several years. Then, when they are ready to breed, their bodies tell them it is time to go home.

The Trip Home

Step three: find the way. They find the way using smell, magnetic clues, and memory of their home stream. The trip upstream uses a huge amount of energy, and the next generation hatches in the gravel.

A Closer Look

Let's take a closer look at the salmon circle! It starts with eggs in gravel. Little fish hatch and grow. They swim to the ocean to get big. Then they swim home to begin again.

Quick Facts

Quick facts! A salmon can smell the unique scent of its home stream. Every stream smells a little different. Swimming upstream takes huge energy. Watch from a safe viewing spot with a grown-up.

Think Like a Scientist

Now, think like a scientist! Draw the salmon life circle: eggs in gravel, little fish, an ocean adventure, and then the trip home. Number the steps. Then tell the story to someone! Share what you discover with a grown-up.

Outro

Salmon swim up rivers to lay eggs where they were born. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!