Susan would point out many things along the way. Notice the trees in the swamp. Eventually, all these trees will form a forest. Going on the boardwalk, was just one of the many exciting things we did at Echo Hill. We didn't know until we went on our field trip to Echo Hill.
Succession is a series of changes from one stage of development to another.
We saw the Big Marsh in its swamp stage. We also learned swamps are just floating land. Mr. Metz, in Becca's group, was leaning against a tree when Susan, the group leader, suddenly said to look at the tree. That was when we noticed the tree moving. In Lizzie's group, Dave, another leader, lifted up one of the the trees and showed them that it was on an island and that it was floating in the water.