As the school year comes to a close, the number of reviews that I am receiving is becoming few and far between. I am sure that students have more important things to be doing (like studying for finals and dreaming of summer). Last week the students of Earth and Environmental Science wrapped up their course material with a brief foray into natural resources. Unfortunately we did not have but a week to spend on the topic. That week, however, was a full week that saw students presenting, posters being created, and ads being thought up. This week is all about review for the final exam (tomorrow). For a brief moment, though, we will take a look back to last week (4/30-5/4) through posts from Jatiyah Walker and Monica Toomer.
In class we talked about natural, renewable and non renewal resources. Natural resources is anything the earth provides. Renewable resources is resources available supply without a limited supply of it. Non renewal resources are resources that are a available but, has a fixed amount. We also talked about saving energy. Such as using energy efficient products and by conserving energy. When you use energy efficient resources you can get more from it than using regular products. I thought that what we learned in class was interesting. I thought I was interesting because I got a better understand of how we use the resources we have.
This week in Earth Enviromental we dicussed what renewable and nonrenewable resources are. A renewable resource is any resource that will be replaced naturally. A nonrenewable resource is a resource that can not be replaced once it has been used. Examples of renewable resources are; water, wind, and oxygen. Examples of nonrenewable resources are; coal, oil, and petroleum. We also talked about how fossil fuels form. Oil is formed from diatoms and algae in the ocean and coal is formed from swamp plants on land. The sediment begins to build up and create heat and pressure, after a while the organic material turns into coal and oil. Coal can be extracted from the earth by mining and mountaintop removal. Oil can be extracted by drilling and wells that are drilled into the earth to suck up the oil through pipes. We also talked about how elctricity gets into our homes. In a thermal powere plant water is heated to create steam which is used to spin the turbine which then turns on the generator which sends the electricity through the power grid and into our houses. There are 5 sources of renewable energy: solar , hydropower, wind, biomass and geothermal. Solar energy is used by the sun hitting the solar panels and that produces the electricity. Wind and hydro power is used to turn the turbines. Biomass is the burrning of waste or renewable resources such as wood to make electricity. Lastly, geothermal energy is generated by the heat that is stored beneath earth's surface. To reduce engery you can conserve it; which is to keep people from using it and by being efficient; which is to get more using less.