Transcript:

Hi! I have a question for you. Notice this tree behind me—this one. It's quite a big tree. It's more than a hundred kilograms of weight. Okay, not of weight, of mass. 100 kilograms. Where does the mass come from? Have you thought of this?

So, I did an experiment. This year, in our garden, we made raised beds. So, at the bottom of the raised bed, I put a weed barrier sheet, and then I filled it up with mushroom soil and then added some mulch on top of it, and then we planted watermelon, for example. And carefully, I was monitoring how much fertilizer I'm adding. And I added—over the course of these four or five months—I added maybe three handfuls of fertilizer. Not much. But the watermelon that came out was like four kilograms. It's a big watermelon.

Where does that mass come from? It's not from the fertilizer. It's not from the soil. There's no hole in the ground where it takes up all the mass and converts it to watermelon. So, where's the mass coming from?

Let me know in the comments. Where do you think the mass of trees comes from? Bye!