Doing experiments (实验) is one of the most interesting things about studying chemistry. In some countries, it's often teachers who do the experiments in the front of the class with students watching. But in the UK, students take action by themselves.
Mrs. Zurolo, a chemistry teacher, usually gives the students a piece of instruction paper the night before the laboratory class and lets them read it. During the class, she first goes over the steps and then puts all the students into groups of two to do the experiments. What's special is that for every laboratory class, Mrs. Zurolo changes everyone's laboratory partner so that students can work with different classmates.
The class is often filled with screams (尖叫) and laughs. Once the students rid to bur chemicals (化学品) and watch the colors of the fires. Different chemicals produced different colors of fires, including bright orange and dark green. Many students in the class were very surprised. "Wow! That's so beautiful!" they screamed. In that class, the students excitedly took pictures with their phones and posted them online.
After finishing an experiment, the students need to write a laboratory report that includes the steps and the students' watching. And of course, the final results are also included in the report. The laboratory reports are important. They are marked and make up about 25 percent of the grade.
①a something that a person or group does
②р to make or create something; to cause something to happen
The class is often filled with screams and laughs.
The class is often screams and laughs.
