Cui Zhiduan and Cui Zhiming chose tents and sleeping bags. Ye Zhenzhen asked Zhang for three pieces of silver, but shopkeeper Zhong refused to take any of them. Ye Zhenzhen couldn't help it. Hearing that shopkeeper Zhong's grandson was studying, he asked Yuxiu to clean it up.
A set of enlightenment books was given to him.
Shopkeeper Zhong did not refuse this time, but happily and carefully put the book away, thanking him profusely: "The Cui family is a wealthy family. Mr. Cui and Magistrate Cui are both literary stars who have won three yuan. Every paper and every ink in the house is full of literary characters."
As for luck, if the grandson of a villain can get even a little bit of it, his life will be worth it."
Ye Zhenzhen took pity on him and asked Yupan to prepare some snacks from the house for him to take home to his grandson, and then asked Zhang San to see him off.
The tent was moved back to Fuxi Courtyard by the ladies. Aunt Cui stepped forward to check it out and said: "The tent base is still relatively thin. Remember to put a blanket underneath when you rest at night to avoid catching a cold."
Ye Zhenzhen agreed. Although it was a test for the child, she did not want to make the child sick.
Cui Zhiming hugged his sleeping bag and asked about his little lion.
Only then did Ye Zhenzhen remember such a thing. She counted the time and said, "It should be within the next few days. If you want to play, how about your aunt asking someone to make one for you tomorrow?"
Cui Zhiming felt embarrassed and shook his head repeatedly: "No, just wait. Our academy will have a holiday by then, and my brothers and I will have time to play."
This is true.
As a part-time tutor, Ye Zhenzhen goes to attend a few classes every once in a while, and the students' level gradually improves. She is currently thinking about what winter vacation homework to leave for her students.
Cui Zhiduan still remembered what he had packed before, and ran over curiously and asked: "Mom, why are you packing alum for daddy? Isn't alum used to make ice?"
Some of the ice drinks he had in the summer were made of alum, and his mother even took him to make the ice herself, so Cui Zhiduan was deeply impressed by this. It was already winter, so why did he need to bring alum with him to make ice?
Ye Zhenzhen quickly entered the master state: "Alum can not only make ice, but also purify sewage. No matter how clear the water in the wild looks, there are many germs hidden in it, let alone collect some sewage. So you will arrive in the future
In the wild, water must be purified and boiled before it can be drunk."
Cui Zhiduan and Cui Zhiming both nodded honestly.
Cui Zhiduan couldn't express his curiosity and continued to ask: "Mom, can we do experiments?"
His mother told him the word "experiment", and another saying is to study things to gain knowledge. His father also agreed very much. Over the years, his mother took him to do many interesting experiments, which was really fun.
There was not a lot of alum in the house, so they asked Jade Pan to fetch alum, containers, sewage and other materials. Cui Zhiming and Cui Zhiduan ground the alum into fine powder using their own medicine grinding equipment - they learned some herbal knowledge from Ning Kang.
Apart from anything else, the way of grinding medicine is quite good.
The alum was ground, then poured into a glass cup filled with sewage, stirred to melt, and then waited for changes. Of course, in order to be more reasonable and scientific, the experiment also set up a control group, with another glass cup containing the same amount of sewage.
This experimental concept is understood by both boys.
At this time, not only the maids serving in the room, but also Aunt Cui came over curiously.
Because the change did not happen very quickly, Aunt Cui was gradually distracted and began to chat with Ye Zhenzhen.
Soon, her attention was attracted by her grandson's exclamation, and then she saw two completely different glasses of water.
One cup is clear and clear, while the other cup remains cloudy.