Once upon a time, there was a blimp named Barney who loved to experiment with gases. One day, he decided to do an experiment at the stadium. He wanted to see which gas had the highest density.

He filled the blimp with different gases and flew over the stadium. The crowd below cheered as they watched Barney fly higher and higher. But then something unexpected happened. Barney's experiments caused the molecule of the gas to grow and grow until the blimp became so heavy that it fell down to the ground!

The crowd gasped in shock, but Barney just laughed. "Well, I guess I found out which gas has the highest density!" he said with a chuckle. And from that day on, Barney was known as the blimp who did the most hilarious experiment at the stadium.

Reflections

1. What was Barney's experiment about?
2. How did the crowd react when Barney's blimp fell down?
3. What happened to the molecule of the gas?
4. Why do you think Barney laughed at the end of the story?
5. Can you think of another gas density experiment that Barney could try next time?