Amrita Raichura
11T
Biology: Lab Report
HOW SUNLIGHT AFFECTS THE DISTRIBUTION OF A CERTAIN PLANT SPECIE
Research Question:
How does sunlight affect the distribution of a specific type of plant specie in an area which has approximately the same temperature, soil pH, nutrients, soil salinity and water content?
Variables:
Dependent variable: distribution of the chosen plant.
Independent variable: amount of sunlight in the area.
Constant variable: the amount of temperature, soil pH, nutrients, salinity and water content.
Hypothesis:
Some plants grow well under higher amount of sunlight while others grow well under less amount of sunlight. The plant which has been chosen is likely to grow well in an area which it is not exposed to high amount of sunlight. This is predicted after looking at the area where this type of plant is found and just observing the plant growth and distribution without ant practical work.
Apparatus:
- Light sensor
- TI calculator
- CBL Cable
- Vanier LabPro (with batteries)
- Quadrat
The light intensity being emitted from any light source can be measured by the light probe depending on the appropriate range of the light intensity.
~ 0-600 lux is used for low levels of illumination