Xiao Yi placed a hand on Li Zexuan's shoulder. "The scarf my mom knitted is nice and warm. You can ask her for one."
Li Zexuan lowered his head. "That won't do. Let's see if Ms. Lin comes around and makes me one. Now, let's get on with the experiment."
The four children were experimenting in the yard. Only their heads could be seen in the camera. Everyone was wearing masks and gloves. Their faces were barely visible.
Wheatley saw Xiao Yi mix some powder. She could not remember the names of the chemicals. They were called Potassium Nitrate or something. It gave off a red color when mixed with something else.
Finally, Xiao Yi poured the mixture over a table tennis ball. The ball burned, and red smoke rolled up from it.
Lin Wan and Xia Mo ran outside because they thought there was a fire.
[Why is there so much smoke? It's red! It can't be a fire, right?]
[Teacher Xia and Lin Wan look really worried.]
