Fossil fuels by alan
- 1. Fossil fuels Created by Alan Wali I HOPE YOU ENJOY IT!!
- 2. What is fossil fuels? There are three types of fossil fuels , they are : coal; oil; natural gas. We use coal for barbeques, ( did you know in the olden times they used coal for ships and trains.)
- 3. Natural gas Natural gas is used for heating, cooking and some types of cars. Natural gas is a fossil fuel that can be formed in different ways. The widely held theory of the origin of natural gas is that it is composed of the remnants of decayed plant and animal matter that has been subjected to immense pressure under the earth’s crust over millions of years. This formation of natural gas is referred to as thermogenic methane and it is made in a similar fashion to oil.
- 4. Oil oil is used for running engines or machines. Oil is formed by……. Thousands and thousands of years ago, when the plants and animals died, leaves and sand and dirt and parts of the earth fell onto the dead plants and animals and that’s how we got oil. They use massive drills to get the oil from under the water.
- 5. Coal Coal is used for barbeques, heating and in the olden days they used coal Coal wasand trains. for ships formed millions of years ago when the earth was covered with huge swampy forests where plants - giant ferns, reeds and mosses - grew. As the plants grew, some died and fell into the swamp waters. New plants grew up to take their places and when these died still more grew. In time, there was thick layer of dead plants rotting in the swamp. The surface of the earth changed and water and dirt washed in, stopping to decaying process. More plants grew up, but they too died and fell, forming separate layers. After millions of years many layers had formed, one on top of the other. The weight of the top layers and the water and dirt packed down the lower layers of plant matter. Heat and pressure produced chemical and physical changes in the plant layers which forced out oxygen and left rich carbon deposits. In time, material that had been plants became coal.
- 6. Thank you for watching my power point. I hope you enjoyed my power point!!