[4. All chemicals must be placed correctly according to the labels. Please strictly follow the steps written on the blackboard by the chemistry teacher to conduct the experiment, otherwise you will be responsible for the consequences.]
[5. The safety officer will enter the chemical laboratory at any time to check the safety conditions. When the safety officer stops in front of you, please leave the laboratory with him.]
[6. You must complete your experiment. If the safety officer takes you away during the experiment, you must ask the safety officer to provide you with another chemical laboratory to complete the experiment.]
[7. If the elevator stops at the 3rd floor, you can take the elevator to leave. If the elevator stops at any non-existent floor, please wait for the safety officer to appear and let him take you out of the laboratory building.]
[8. The safety officer has black skin, wears a work badge, and walks with his feet. Please distinguish him.]
Su Qingyu pushed open the door of 303 and entered the laboratory. What greeted her were bottles, jars and medicines of various colors.
The wall was hung with the periodic table of chemical elements and diagrams of various experimental steps, which looked a bit messy.
Various tools and reagents were scattered on the laboratory table, looking like they were placed randomly. The chemistry teacher wore a mask that covered his entire face tightly.
Every time a student came in, the chemistry teacher would put a check mark in his notebook.
At the left corner of the chemistry lab table, there are students’ names posted.
Su Qingyu found his seat, sat down and looked around.
Wu Chao sat on the bench expressionlessly, staring at the blackboard like the other weirdos.
It seems that it is gg.
With the ringing of the third bell, the chemistry experiment class officially began.
The students who arrived on time were all weird. Except for Su Qingyu and other three, all the other trial-takers were late.
As the class monitor, Su Qingyu marks the names of late students.
The chemistry teacher began to write chemical equations and experimental steps on the blackboard.
He explained as he wrote.
What was explained was completely different from what was written on the blackboard.
[Course Rules]Article 6.
[Don't believe what the chemistry teacher says, don't enter the chemistry equipment storage room, and don't be alone with the chemistry teacher. ]
[Chemical Laboratory Rules]Article 4.
[All chemicals must be placed correctly according to the labels. Please strictly follow the steps written on the blackboard by the chemistry teacher to conduct the experiment, otherwise the consequences will be at your own risk.]
Words cannot be trusted, but what is written on the blackboard can be trusted.
Su Qingyu began to conduct the experiment according to what was written on the blackboard. As the liquid in the test tube gradually changed color, a strong sour smell filled the laboratory.
Bai Yuanxiang has been providing close guidance to ensure that there are no mistakes during the experiment.
Nearly ten minutes after the chemistry class started, the remaining few trial participants hurriedly arrived.
The people knocking on the door were two students, a boy and a girl, who looked like a couple.
They were originally following Wu Chao, but when they saw Wu Chao already sitting in his seat, their faces turned ugly.
One of the boys bravely said to the chemistry teacher standing on the podium: "Sorry, teacher! We are late!"
The chemistry teacher didn't say anything, but just pointed to their seats.
Being late does not constitute a violation of the rules, only deduction of credits.