Where Do Trees Get Their Mass? | Summary and Q&A

2.3M views
March 12, 2012
by
Veritasium
YouTube video player
Where Do Trees Get Their Mass?

TL;DR

Trees gain most of their mass from carbon dioxide in the air, not from the soil.

Install to Summarize YouTube Videos and Get Transcripts

Questions & Answers

Q: Where do trees get their mass to grow big?

Trees primarily gain their mass from carbon dioxide in the air. They also absorb water and nutrients from the soil through their roots.

Q: Do trees eat anything?

No, trees do not eat in the same way animals do. They obtain their energy and nutrients from sunlight through photosynthesis.

Q: Is the mass of a tree taken out of the soil?

No, the mass of a tree does not come from the soil. Trees primarily use soil for anchoring themselves and obtaining water and nutrients, but their mass comes from the air.

Q: What would happen if a tree and a person were in a closed system?

In a closed system, a person would breathe out carbon dioxide and water, which a tree would take in. As a result, the person would lose mass while the tree gains mass.

Summary & Key Takeaways

  • Trees do not get their mass from the soil, as evidenced by an experiment conducted by Johann Baptist Van Helmholt in the 1600s.

  • The mass of a tree primarily comes from water and nutrients absorbed through its roots, as well as carbon dioxide taken in through its leaves.

  • Trees convert the energy from sunlight to build their matter into branches and leaves.

Share This Summary 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Explore More Summaries from Veritasium 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on: