Assignment: Photosynthesis Quiz

BIO A - 2nd Tri
2025-12-01T18:08:50Z

Due:

In the 1600s, Dutch Scientist Jan Van Helmont set out to prove that plants grow using mass from the soil. In order to do so, Van Helmont set up an experiment where he grew a willow tree for 5 years. He measured the mass of the soil before and after, as well as the willow tree before and after. The tree was dried out before it was measured the second time. However, by the end of the experiment the mass of the soil was largely unchanged (from 200 kg to 199.18 kg), yet the tree grew in mass. Answer the following questions to explain the results of this experiment.

In the 1600s, Dutch Scientist Jan Van Helmont set out to prove that plants grow using mass from the soil. In order to do so, Van Helmont set up an experiment where he grew a willow tree for 5 years. He measured the mass of the soil before and after, as well as the willow tree before and after. The tree was dried out before it was measured the second time. However, by the end of the experiment the mass of the soil was largely unchanged (from 200 kg to 199.18 kg), yet the tree grew in mass. Answer the following questions to explain the results of this experiment.