Not practical!

He silently came to a conclusion in his mind and then fell silent.

Dadan said with a straight face, "Just because you haven't seen these used doesn't mean they've never been used in real life."

Although he didn't know where these things were used, he was sure that his ignorance was due to his lack of knowledge.

Qian Yin remained unfazed and explained with a smile, "Chemistry can create new substances and understand them. It's a field full of changes and challenges. Just like the questions you asked, what are these things, why do they change, and what can they be used for? These are all things you need to explore and discover."

Erdan: “…” Just by listening to it, he felt that it was too troublesome.

But there was a gleam in Dadan's eyes, and he opened his mouth as if he wanted to ask something, but he didn't know where to start because he had so many questions.

Su Qinghu felt that this was just like a poor student who wanted to study hard and asked questions to a top student. The top student asked him what he didn't understand, and he could only grunt for a long time and say that he didn't understand anything.

"Have you seen the movie?" Qian Yin asked.

The two children nodded and said, "We have seen it."

"Have you seen any anti-Japanese war movies?" Qian Yin continued to ask.

Erdan instantly got excited: "I've seen fighting the Japanese!"

Qian Yin: "Have you heard of biological warfare and chemical warfare?"

As soon as these words were spoken, the Chen family father and son stopped talking and looked over.

Su Qinghu could feel the momentum that the two of them released and then retracted in an instant.

Okay, these people seem to be getting along quite well. She looked at Chen Lie and said, "You guys chat first. I'll go to the kitchen and take a look."

Chen Lie was just thinking about whether to follow when he received a warning look from Su Qinghu and paused for a moment, "Yeah."

Su Qinghu greeted Chen's father and walked towards the kitchen.

Qian Yin was still explaining to the two children behind him, "Bacteriological warfare and chemical warfare are both biological and chemical weapons. They are extremely dangerous, spreadable, and uncontrollable..."