Testing the effect of carbon dioxide on photosynthesis rate
All Variables like water, sunlight and humidity are kept constant
The amount of Carbon dioxide given to the plant changes(Independent Variable)
The rate of photosynthesis is measured (Dependent Variable)
Merna Henry
Strengths
using nature to validate some laboratory finding or theoretical concept.
Merna Henry
No artificial and limited setting of the laboratory
Merna Henry
Limitations
Difficult to observe habits withour disturbing habitat
Merna Henry
