Natural Gas - SS3 Physics Lesson Note

Natural gas is a fossil fuel that is composed primarily of methane (CH4) and is found in underground rock formations. It is often extracted through a process called hydraulic fracturing, or "fracking," which involves injecting water, sand, and chemicals into the ground to release the gas from the rock.

Natural gas is used in a variety of applications, including heating homes and buildings, generating electricity, and powering vehicles. It is a cleaner-burning fuel than coal and oil, producing less carbon dioxide and other pollutants when burned. As a result, natural gas is often considered a "bridge fuel" to help transition away from dirtier fossil fuels towards cleaner energy sources like renewable energy.

However, the extraction and transport of natural gas can also have negative environmental impacts. Fracking has been associated with water contamination and air pollution, and methane emissions from natural gas production and transport can contribute to climate change. There are also concerns about the potential for accidents or leaks in natural gas pipelines or storage facilities, which can cause explosions or fires.

Overall, the use of natural gas as a source of energy involves a trade-off between the benefits of a cleaner-burning fossil fuel and the potential environmental and safety risks associated with its extraction, transport, and use.