Mankind human activities are now having a harmful

Mankind has made enough plastic to cover the Earth entirely with synthetic polymers.  Since the year 1950, worldwide production and consumption of plastics have proceeded to increase. (Lytle, 2017) Two million tonnes of plastic was first mass manufactured in 1950, a report found that this figure has risen to 8.3 billion tonnes of plastic generated last year. An analysis published in an article ‘Worldwatch Institute, January 2015’, reveals that humans have yielded an estimate of 299 millions tonnes of plastic since 2013, realising a 4% increase over the year 2012, thus establishing an upward trend over past years. (Gorumelon, 2015).  To be able to cover Earth in plastic is alarming to scientists; for it proves that human activities are now having a harmful impact on our environment.Plastic is described as a lightweight, flexible, durable and relatively inexpensive material. Even though it may durable, plastic is a very slow substance to degrade. By examining the classification of plastics according to their degradability and chemical properties of plastics into degradable and non-degradable polymers.  Normally Non-biodegradable plastics are synthetic plastics are composed of a small monomer that has a very high molecular weight. Whereas degradable plastics are composed of starch and have less molecular weight. In this experiment, a Low-Density Polyethylene (LDPE) plastic will be used. LDPE is a flexible, inexpensive and relatively durable. LDPE is widely used for manufacturing various containers, dispensing water bottles, tubing and most common in the use of producing plastic bags. With the amount of plastic bags produced, it can lead to high amount of littering. Singapore uses 3 billion plastic shopping bags every year. With that large of an amount of plastic bags being produced, there is a high probability that some plastic bags have been littered with the environment. thus leading to plastic degradation in the environment of Singapore. With Singapore being on the equator, the temperature of land can increase a plastic degrading process. The difference in temperatures can affect the area of degradation of LDPE, in two environments that are likely to be polluted with plastic bags, soil and sand. In this investigation, I expect that plastics exposed to higher temperatures in both soil and sand have a larger circumference/ area of degradation. Due to LDPE having a thinner and lighter material and chemicals in them, higher temperatures are able to degrade them. Therefore plastic shopping bags would have a bigger area/ circumference of degradation when being exposed to a greater temperature within two different areas of land, soil and sand, thus a decrease in its service life resulting in a degradation of plastic in both areas. This leads me to my research question. This leads me to my research question.