Natwerk Designs

How to design an experiement that measures and traces the flow of a particular nutrient in a closed ecosystem?

For my IB Environmental Sciences class, I must design an experiement that measures and traces the flow of a particular nutrient in a closed ecosystem. Here is what the Science Lab Planning Worksheet looks like: ------------ Planning (a): 1) Research Question: 2) Hypothesis/Prediction: 3) Independent Variable(s): 4) Dependent Variable(s): 5) Control Variables: Planning (b): 1) Materials: 2) Apparatus: 3) Procedures/Protocols: Notes: ------------ If anyone could shed some light on this for me and assist me in coming up with ideas for a good experiment for this, in addition to assisting me with the above outlined sections, I would greatly appreciate it! I will give a good amount of points to the best answer, so please be as thorough and detailed as possible when responding!

Public Comments

1. You have a lot of leeway with this, since you can choose whatever nutrient you want. Some nutrients, like water, are easy to track since they can be measured very well in the environment, and you automatically have a good idea of how much water each organism holds. I would first research different types of nutrients before you start this project. Good luck!