Project cost ($):
1 day to prepare, 5 days for observation
Table of Contents
This experiment was performed to ascertain if watering Bambusa vulgaris (common bamboo) plants with sea water will cause them to grow faster, slower or wilt. Sea water is sometimes used to put out forest fires. The result of this experiment will help us understand the long term effects of using sea water to put out tropical forest fires.
Watering bamboo plants with sea water will cause their growth to be stunted or will cause the plants to wilt and die.
Bambusa vulgaris (common bamboo)
The bamboo plant is known to be very fast growing, as quickly as several inches a day. This plant can achieve its full height in 4 months. This characteristic of the bamboo plant makes bamboo suitable for this experiment. It helps enable us to measure the effect of salt water on ithe growth of bamboo over a short period of time.
Osmosis is the movement/diffusion of water through a partially-permeable membrane from a solution of low concentration to a solution of higher concentration. In this experiment, the"membrane" is in fact the outer layer of the roots of the bamboo plants, as the sea water is absorbed through the roots via the process of osmosis. The high solution concentration consists of sea water and the liquid inside the roots is of lower concentration.
Osmosis, partially-permeable membrane, Bamboo, Bambuseae
The materials required for this experiment:
You should observe that the plants in group A will demonstrate fast growth. The plants in group B will show inhibited growth. Finally the group C plants will wilt and die.
Use this table below to help record the bamboo plants daily height (in mm).
Use the graph below to plot the results of above observation.
The hypothesis is proven to be true. Watering bamboo plants with sea water causes a stunted growth or kills the plant.
What would happen if the experiment was varied by using brackish water or water from freshwater lakes or ponds?
Bamboo - http://www.en.wikipedia.org/wiki/Bamboo
Can you water plants with salt water - http://www.ehow.com/facts_5509396_can-water-plants-salt-water.html