會話 · 學校生活
Gravity for All
Gravity for All A
Gravity is very important. B: What is gravity? A: It's the force that pulls everything down. B:
I don't understand. A
If you pour water into a glass, the water goes down into the glass. B:
Of course it does. A
Without gravity, the water would go up. B:
You're joking. A
Without gravity, you would go up. B: What do you mean? A: You would float into the sky like a balloon. B: That would be fun!