I traveled through time, this is unscientific

When Zhao Xiaoer heard that Teacher Zhou was going to take them to do some labor practice (picnic) here, his enthusiasm for studying, which had long gone away, suddenly came back.

Zhou Xiaozhou persuaded the children to pick their favorite wild vegetables, saying that he wanted to make a pot of the most delicious soup for everyone.

In fact, it doesn’t matter whether it’s soupy or not. What matters is how much fun it is.

So, the little kids happily ran towards their favorite wild vegetables, ready to show off their skills.

However, Zhao Xiaoer was fooled by Zhou Xiaozhou and went home and brought back a large clay jar.

Why do you say that Zhou Xiaozhou was fooling people?

Originally, Zhao Xiaoer also wanted to follow others to find wild vegetables, just for fun anyway.

But he doesn't like to eat wild vegetables very much.

His sister usually did more of the work of finding wild vegetables, which resulted in him not being very familiar with those inconspicuous and easily mistaken wild vegetables.

Because he was afraid of losing face, he walked half a beat slower than others.

This is the kind of person Zhou Xiaozhou is targeting.

"Xiaoerzi," Zhou Xiaozhou called out to Zhao Xiaoer, who was feeling a little uncomfortable, "Don't rush away. Let them pick wild vegetables. I want to give you a more important task."

Zhao Xiaoer didn't understand what he said. Look, the most important task really had to be completed by him, Zhao Xiaoer.

Zhou Xiaozhou patiently persuaded them: "What shall we do if they bring back all the vegetables without a pot to cook them?"

Then she looked around and said, "The weather is so nice today. Look at the river. There's a breeze blowing, birds and butterflies flying around, and you can even touch some fish and shrimp."

Zhao Xiaoer followed her words and looked around. Yes, the environment here is really nice!

In the past, adults would not allow them to play by the river. Firstly, they were afraid that they would get into accidents, and secondly, there were fields next to the river, and they were afraid that they would play too much and destroy the crops.

But now the adults are not far away, and there is a teacher Zhou who is playing with them. Such a good opportunity is to be missed and will not come again.

Seeing that there was a chance, Zhou Xiaozhou's voice became more seductive: "Little Erzi, do you think we should go back to the school to cook it later? Or should we just finish our homework here by the river?"

Why go back to school? This place is so comfortable!

"I won't go back to school." Zhao Xiaoer decided, "I have a big pottery jar for boiling water at home. Wait for me to bring it over."

But thinking that it would not work if there were no seasoning in the jar, he instructed Wu Xiaobao: "Xiaobao, you have too much salt at home, why don't you go get some."

He completely ignored Wu Sanmei who was standing aside, showing a look of disapproval.

The main thing was that the salt jar in his house was under the care of his sister, so he couldn't tamper with it. Otherwise, he could move the clay jar and take some salt at the same time, which would have been faster.

Of course Wu Xiaobao was willing, so despite his sister's objection, he happily followed Zhao Xiaoer to the village.

The children were innocent and carefree, and soon they scattered around the mountains and fields, in groups here and there. They were not really picking wild vegetables, they just wanted to have fun.

While observing the children, Zhou Xiaozhou was also concerned about what was happening with Old Wu and the others.

The village gathered some hemp ropes and managed to tie up the big rock.

The women took farm tools and thoroughly dug out the mud from under the stones.

The stone is an irregular square slab of stone, but it is a little big.

Li Jinniu and Lin Dayou tried to lift it with their shoulders just now. They tried their best, but the stone didn't move at all.

Now they are thinking of digging a slope and then gathering more manpower to pull the stones out.

Zhao Xiaoer ran very fast and carried the pottery jar over by himself.

Zhou Xiaozhou directed the children to build a simple stove using three stones beside the stream.

Soon a fire was lit.

As for the matter of making fire, all credit goes to Zhao Xiaoer. He thought of the lack of fire in the wild and stole the flint from his house.

The people who were digging wild vegetables saw that a fire was lit here, so they stopped digging and went back to Zhou Xiaozhou to watch her make a fire.

It's just for fun.

How could Zhou Xiaozhou light a fire?

Wu Sanmei couldn't bear it anymore and took the initiative to take the responsibility of lighting the fire.

There are also people washing vegetables, not to mention people fetching water.

In short, people who didn’t know the situation would think that the children were going to cook dinner by the creek.

When the first pot of water was boiling, Zhou Xiaozhou did not allow the children who were eager to try to throw wild vegetables into it.

Wu Sanmei immediately felt that she was in trouble.

Zhou Xiaozhou imitated Wu Sanmei, grabbed a handful of weeds from the roadside, put them in his hands to keep them warm, then picked up the can of hot water and quickly ran to the edge of the pit.

Then, before Old Wu and the others could react, he poured hot water on the big rock.

Everyone was stunned by her series of actions.

Why did you get sick again out of nowhere?

Old Wu really couldn't think of any reason why Zhou Xiaozhou would do this.

Zhou Xiaozhou is waiting for the results.

It turned out that the picnic was fake, but Zhou Xiaozhou's need for hot water was real.

The idea that objects expand when heated was what Zhou Xiaozhou had just thought of. He had seen it in Chen Dahe's messy books.

The book says that if you want to crush the stone, but you don't have any tools at hand, you can try pouring hot water on it. There may be some small cracks or holes inside the stone, which will expand when heated and the stone will crack by itself.

Never mind whether it's true or not.

In Lai'an Village, where there was no external assistance, it was not a bad idea for Zhou Xiaozhou to try this. Fortunately, she succeeded.

There was a crisp sound of "crack", and a large piece of the upper right corner of the stone cracked off.

The upper right corner of the crack was where Zhou Xiaozhou had just poured hot water on him.

Old Wu, who originally wanted to scold Zhou Xiaozhou for his mess, now remained silent.

Without asking why, he jumped into the pit to check.

"What's going on?" Li Jinniu was also following nearby, and he couldn't hide what was going on.

"Miss Zhou, how come this stone cracked by itself?" Lin Dayou also found it magical.

Zhou Xiaozhou was a little proud. See, she said her idea would work, but Old Wu still refused to listen to her.

"This is actually the general principle of thermal expansion and contraction." Zhou Xiaozhou was surrounded by students who came to watch the fun and took the opportunity to explain some science.

"Generally, this object will expand when heated and contract when cooled. Although this stone is very large, it will also weather under natural conditions after being exposed to the sun and rain for a long time. Weathering is actually the process of continuous expansion and contraction due to heat and cold. I just gave it hot water to accelerate this process."

"And just now, Brother Lin and I both hit the stone hard, which may have caused some damage to the stone. There may be some small cracks inside it, and some of the original sand and gravel cavities. Therefore, when it encounters hot water, it will expand, and then the uneven force will cause it to crack."

After Zhou Xiaozhou finished his (nonsense) explanation, he suddenly felt that he was truly a talented person.

Everyone present was stunned.

Anyway, let’s talk about it anyway.

They found a way to make the stone smaller, thanks to Lin Daiyu.