Smoke on the stage

One afternoon, the little monkey and the little bear were playing hide-and-seek on the mountain. The bear hid in a bush for the little monkey to find, and the little monkey climbed the tree to find the place where the bear might hide. Just then, waves of beautiful music mixed with noisy noise came from the direction of the small village at the foot of the mountain.

According to past experience, the little monkey knows that this kind of sound will only be heard when there is a performance in a small village. The little monkey hurried down from the tree and called to the bear, "Bear, come out quickly. Listen, there's another performance in the village. Let's watch the show! " "

Hearing the music and noise, the bear and the monkey hurried out of the bushes, put on the clothes and hats of the children they had picked up from the mountains and ran towards the music.

This is a cultural evening to celebrate the harvest. In addition to the programs of famous actors invited from other places, there are some local programs rehearsed by farmers themselves.

When they came near the stage, because it was not completely dark, the little monkey and the little bear hid in the bushes and looked at the stage through the cracks in the bushes.

The first program they saw was a dance that showed farmers' working life. Next, they watched an acrobatic, and many people rode bicycles. After watching these two programs, it was already dark, and the little monkey and bear quietly came to the stage under the cover of night.

two

Because they were all wearing children's clothes and scarves on their heads, only two eyes were exposed, so the people present did not find these two small audiences from the mountains.

After they came to power, they watched a sketch program. After the sketch program, the host came forward and announced that the next program was a song brought by a famous soprano, and the audience applauded.

Soon, the female singer took the stage leisurely. She greeted the audience first and paid tribute, which caused everyone to cheer.

Then, the female singer sang loudly. At the same time, several dancing actresses walked lightly onto the stage.

The little monkey and the little bear were attracted by this spectacular momentum. They watched quietly, forgetting that they were in the crowd.

Just then, the little monkey and the little bear suddenly saw that two strands of smoke slowly poured onto the stage from both sides of the stage.

"ah!" The bear was surprised.

"No, run, it's on fire!" The little monkey shouted for the bear to run to the mountain.

"Hey, what are they saying?" A child standing near the little monkey and bear looked curiously at the little monkey and bear running away and asked the people around him.

"Who knows what they are saying? They are chattering, not people! " An old man murmured a word.

At this time, music and songs were more exciting, and everyone stopped talking.

three

The little monkey and the little bear ran to the mountain as if they were running for their lives. At the same time, mother monkey and mother bear are going down the mountain. They waited until it was dark and the child had not come home, so it was inferred that the child had gone down the mountain to watch the program and found it along the way.

Mother monkey and mother bear are walking in a hurry. They are worried about the safety of their children, and they also want to take this opportunity to go down the mountain to watch the programs performed by human beings.

Not far from the mountain, they met the little monkey and bear running back.

Mother monkey criticized each other first, and then asked, "why are you back?" Looks like the show isn't over yet. I also hear music! " "

The little monkey said, "The stage is on fire. We are afraid of burning, so we ran back!" " "

The bear said, "The fire started from both sides of the stage. What a big smoke! " "

"Impossible, how can the stage catch fire?" Mother monkey said, "Listen, there is music. There is no music when there is fire! " "

"Hey, yes!" Mother Bear said, "Why don't we go down and see what's going on and let the children learn more!" "

"Ok, let's go!" Mother monkey called the little monkey and the little bear and said, "Come and have a look with us, don't be afraid!" " "

Mother monkey and mother bear walked down the mountain with their little monkeys and bears.

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They stopped twenty meters away from the stage.

"Where is the fire?" Mother monkey looked at the brightly lit stage and asked.

"Yes, why is the smoke gone?" The little monkey and the little bear said in unison.

While speaking, another actress stepped onto the stage.

Singing and singing, smoke surged up from both sides of the stage.

"Look, it's on fire!" The little monkey pointed to the smoke on the stage and said loudly.

"Ha ha, you are mistaken!" Mother monkey smiled and said, "Those smog were not caused by fire, but by the stage effect caused by the staff spraying dry ice."

"Dry ice, what is dry ice?" Asked the bear.

Mother monkey said, "Dry ice is solid carbon dioxide, which is mainly used for refrigeration." The smoke on the stage is made of dry ice. Dry ice sublimates into carbon dioxide, absorbs a lot of heat, condenses water vapor in the air into small water droplets, and forms smoke. "

"Oh!" The bear nodded with a puzzled expression. He asked the monkey again, "Do you understand?"

"hmm!" The little monkey shook his head and said, "As long as it doesn't catch fire, let's go down and watch the show!" " "

Mother monkey and mother bear approached the stage with their little monkeys and bears.