Once upon a time, there was a clumsy little fish named Fin. Fin loved to travel in the big blue sea. One day, he saw a big bubble. The bubble had something called oxygen inside it. Fin wanted to play with the bubble.
As Fin swam closer to the bubble, he bumped into it. The bubble wiggled and jiggled. Fin laughed and tried to push the bubble. But he was too clumsy and the bubble popped. The oxygen went out into the water.
Fin was sad that the bubble popped. But then he saw more bubbles with oxygen. He swam and played with them. He was still clumsy, but he had fun. And that is how Fin the fish learned to enjoy his travels in the big blue sea.
