In
conclusion, I discovered that out of all three plants the bean plant grew
the fastest. It was the first plant to start to grow and grew the tallest.
The bean plant grew a total of 345mm in a total of 15 days.
Therefore, I accept my hypothesis which stated “I
believe that out of all three plants, the bean plant will grow the fastest
and tallest. The bean plant seed is big and contains the nutrients it
needs to start growing right away. On the other hand, the other two seeds
are small and have to absorb the nutrients from the soil before it can
start to grow. I say the bean plant will also grow the tallest because it
grows quite aggressively compared to other plants. I have seen pictures of
fully grown chive plants and there is no way it can compare with a fully
grown bean plants. The mint leaves, however may grow as tall as a bean
plant. But since the bean plant grows the fastest, then in the 15-day
experimental period, the bean plat will be the tallest.” In my
observations, the trend I noticed was that when I measured the temperature
inside each green roof before the carbon dioxide was added; it was
significantly different from when I measured the temperature after
the carbon dioxide was added. The temperature from before the CO2 mixture
was added was around 4-9 degrees higher then after the mixture was added.
This trend is significant because it proves that carbon dioxide lowers the
temperature inside a green roof. This could help the growth of plants as
they tend to grow faster under 20 degrees.
Another trend involves the water absorption of
the plants. After the completion of my project, I established that the
bean plant absorbed the most water. Though I am unsure of the exact
amount, I know that the bean plant absorbed the most water based on
findings. On average, it was rated a 3.3 out of 5, which was the highest
out of the three plants. This trend is significant because a plant
absorbs water, and the amount absorbed reflexes in its overall growth.
The last trend involves the absorption of carbon
dioxide. Now, I did not actually use a monitoring device to examine this,
however, I am sure that the bean plant absorbed the most carbon dioxide.
Normally the biggest plant with the largest leaves absorb the most carbon
dioxide. The leaves absorb the sunlight and CO2. So, the bigger the
leaves, the more heat and CO2 absorb, meaning the bigger the plant.
Therefore, the bean plant would have to be the one that absorbed the most
CO2.
In conclusion, I learned what a green roof is
and how they are used. I now know that green roofs keep infrared
radiation from ever reaching the roof. In addition, they also lower the
temperature of the outside air, reduce storm water runoff, seize carbon
dioxide and replace lost green space in urban areas. On flat roofs, they
can be rooftop gardens, providing food, beauty, wildlife habitat and a
bird's eye view. Since climate change is such a hot topic, I believe that
green roofs will be the wave of the future, the next big thing. They have
so many helpful environmental impacts; help the community and the world.
