Fossil fuels Origin of term „Fossil fuel“ • Fossil fuels were made many hundreds million years ago before the time of dinosaurs hence their name. • They were formed from the fossilized buried remains of plants and animals that lived many hundreds milion years ago. Types of fossil fuels • Coal • Oil • Natural gas How crude oil and natural gas were formed • Millions of years ago, huge numbers of microscopic animals and plants - plankton - died and fell to the bottom of the sea. Their remains were covered by mud. • As the mud sediment was buried by more sediment, it started to change into rock as the temperature and pressure increased. The plant and animal remains were altered chemically by this process, and slowly changed into crude oil and natural gas. The slideshow describes what happened and how we get oil from the ground today: How crude oil and natural gas were formed • The oil moved upwards through the spaces in permeable rock. It became trapped if it reached impermeable rock. Oil companies can drill down through the impermeable rocks to get it out. They are then able to turn it into products we can use, such as petrol and diesel. Oil • Oil was formed from the remains of animals and plants (diatoms) that lived millions of years ago in a marine (water) environment before the dinosaurs. How is oil used as fossil fuel? • Used for petroleum products and motor gasoline • A few products made from petroleum: Ink, crayons,tires, etc Drilling of the oil in the desert. Tasks • Make notes from the presentation. • Explain and draw how are fossil fuels formed. • Name three type of fossil fuels. • Watch the video for better understanding: https://www.youtube.com/watch?v=8YHsxXEVB1M • Find out the usage of natural gas and coal.
