A mini ecosystem

Watch A Mini Ecosystem (YouTube).
Obtain the necessary materials and fill your bottle with soil and plants.
Present the following in a document:
a nice close up photo of your filled bottle,
a simple descriptive text of the bottle as a mini ecosystem,
some reflections and thoughts that lead to three questions on the bottle/system's survival.
Scope: 1/2 page (Times 11p, Normal) and a picture.
Read two of your group members´ bottle documents and write a positive feedback to them. Answer as best you can to their three questions.

Deepen your understanding by watching The Bottle and the Biosphere (Youtube)