"There are two weeks to go before the high school entrance exam, whether you are ready or not, you will have to go to the battlefield by then. Outside the order, this week you go back and bring the cost of accommodation and food for this exam, one hundred and forty yuan per person......" said the head teacher, and the class wailed for a while, saying why there are so many. But mourning and wailing and howling, the cost of bringing is still indispensable.

In the last period of time, the head teacher talked to us a lot and analyzed a lot. I'm one of them, although my grades aren't bad. The head teacher also encouraged me, saying that as long as I work harder, there is hope for the No. 1 Middle School. But what I knew in my heart was that there was little hope. Although I also want to go to the city No. 1 middle school, but ...... I can't go, right?

"Next Tuesday, we are going to Xinji High School to take the lab exams in physics and chemistry. I'm sure your substitute teacher has already told you about the experiments in these two courses. Fifteen points in the experiment will be counted in your high school entrance examination results. Although it is only 15 points, it should not be underestimated, even if it is only a difference of one point, it may make you pass by a good school......" said the head teacher, and finally reported the test number, and then told us some precautions.

"Come early on Tuesday and don't be late. The school will organize a bus to take you to the test site one by one, and don't forget to bring your admission ticket, ID card, pen or something...... If you forget to bring it, it will be in vain...... Also, when you get there, there will be a lottery for what each of you will test. A box contains balls of two colors, blue for physics and red for chemistry. Don't get it wrong......"

The head teacher chattered a lot about us, and under his chatter, we finally got on the bus to Xinji High School on Tuesday. Because we were led by our class teacher, even on the way to the examination room, he still chattered to us.

I wasn't nervous at all, but when he talked about it, I got a little nervous. Although the head teacher has been emphasizing that we should not be nervous, calm down, and do our best. But he had no idea how enchanting his words were.

The bus stopped at the entrance of Shinji High School at a quarter past eight o'clock. We got off the bus and lined up one by one under the leadership of the class teacher, and then led the team to each examination room under the leadership of the team inside.

"Have you brought everything with you? No one forgot to bring it, right? The head teacher asked us again. After each of us checked what we were holding, we all replied to him in unison, "No!" ”

"It's good if you don't have it! Don't be nervous, keep your mind at ease! Take out the skills you have learned these days...... "The head teacher encouraged us. We agreed, and with his encouragement, we all took a deep breath and tried to calm our minds.

When we arrived at the exam room, there were two invigilators at the entrance of the exam room. One person had a box on the table, and after checking our admission tickets, they asked us to reach for a ball in the box. After the previous person found a basketball in the box, I reached into the box and touched one casually.

It's a red ball, which means that the experiment I'm going to take is chemistry. We taught three chemistry experiments, and the teacher said that one of them would be examined, but I didn't know which one. I wanted to make carbon dioxide and test some of its properties, because the teacher said that I had the best chance of getting it, so I did the most. So, it's very familiar.

I just don't know if it's my turn to do this experiment. I was so worried that I found my lab table according to the exam number. When I saw the test kit on it, I couldn't help but be excited. Judging from the experimental tools on the table, the experiment I want to do is the production and testing of carbon dioxide.

I rejoiced in my heart for a while, and then waited until another student next to me came over. The invigilator of our group of invigilators, let's get started.

I've practiced a lot when I'm in school, so I'm very familiar with it. I start by taking a small test tube and adding a small amount of litmus solution dropwise to it. The tube containing litmus solution is then placed on the tube rack for later use. Then take a large test tube and place it horizontally, gently pick up two pieces of marble with tweezers and put them at the mouth of the test tube, and then slowly straighten the test tube to make the marble slide to the bottom of the test tube...... I proceeded methodically until I finally lit the alcohol lamp and heated the medicine in the test tube until the red solution turned purple and observed...... And in the end......

"I ...... That's it! "I don't think there's anything wrong with the process I'm doing, but I'm still a little worried. The invigilator glanced at me and nodded, wrote something down in the notebook in his hand, and then said to me, "Fourteen points, your hand holding the test tube is a little shaky and ......a little oblique at first."

"Oh!" I nodded, and although I was deducted a point, I was still happy. Because the teacher said that 14 points is very good, and it is difficult for anyone to get a full score.

When I came out of the examination room, I found that there were many people in our class, and I caught a glimpse of Li Yaowen at a glance.