The document discusses non-renewable resources like fossil fuels, minerals from mining, and topsoil. It notes that fossil fuels like coal, oil, and natural gas were formed from decomposed organisms over millions of years and are in limited supply. The usage of these non-renewable resources has environmental impacts as burning fossil fuels releases pollutants and plastics are not biodegradable. It suggests reducing consumption and reusing or recycling materials to lessen the environmental effects from exploiting non-renewable resources.

1. NON-RENEWABLE RESOURCES8SCIENCE Mon.,Dec. 6

2. Non – renewable resourcesApproximate world usage of fossil fuelsA natural resource that is available only in limited amountsCannot be replaced quickly by natural processesExamples: topsoil, fossil fuels for energy

3. Review of non-renewable resources: MiningWhat is mining?Mining is a non-renewable resourceMinerals like diamonds, aluminum, copper are taken out of the Earth How do mining projects affect the environment and ecosystems?Video clip: mining emeralds in ColombiaStrip mining for coal

4. Fossil FuelsMost common non-renewable resource and is used for energyFound in 3 forms:CoalOil (gasoline, fuel for planes, trucks, heating)Natural gasFormed when organisms die and are buried in layers of rock/soilUnder intense heat and pressure

5. Why do you think fossil fuels are non-renewable?

6. What are they worth ($$$)?We use fossil fuels to ‘power’ most objects in our lives:Cars, factories, electricity for housesFinding new sources of fossil fuels can be very lucrativeCan make a large profit/ a lot of moneyHowever, there are only a limited amount of these fossil fuel reserves on the planet

7. Fossil fuels: Environmental ImpactBurning fossil fuels releases chemicals and substances that contaminate the air and waterA common product made from fossil fuels (oils) is plasticWhile we continue to use fossil fuels, how can we try and reduce our environmental impact?3Rs!: Reduce, reuse and recycleBiodegradableWhen we throw out plastics and other items for garbage, some of those items may be biodegradableBiodegradable: can be broken down by other living things, usually bacteriaExamples of biodegradable items/products:Food waste like apple cores, banana peels, napkins, paper, some plastic bags