How do you know that a tree isn't gaining its weight from the soil?
What do you think would happen to a plant if you put tape on the undersides of its leaves? Why?
In the experiment where the scientist weighed a tree and its soil, even though the soil barely lost any weight, it did lose a little bit of weight. Given what you know about plants, why do you think that happened?
Many people who haven’t learned about plants believe that plants eat soil. What are some reasons why they might think that?