Fossil Fuels Flashcards
What are Fossil Fuels?
Hydrocarbons
What are Hydrocarbons?
Any organic compound composed only of carbon and hydrogen.
What does burning fossil fuels do?
Creates greenhouse gases which cause global warming, creates waste products that can act as pollutatnts and have harmful enviromental effect
Name at least two types of fossil fuels?
Natural Gas
Oil
Coal
Nuclear
What do humans use to live and function?
Chemical Engery from food
Name two activities that require energy?
Travelling and communicating, Manufacturing products, Controlling our enviroment
Name to chain for electricity?
Power Station 20, 000V
STEP UP TRANSFROMER 400, 000V
Power Lines 400, 000V
STEP DOWN TRANSFORMER 33,000V
Homes 230V/Factories
What are fossil fuels made from?
The remains of once living things
What is oil made from?
Dead plankton
How is oil formed?
- Living thing dies
- Remains settle on ocean floor
- Layers of sediment form when sand and other materials settle on the oceanfloor on top of dead plankton
- Over millions of years the pressure of the sand, soil and rock turns the fossils into oil
OIL
MNS OF SEA CREATUES 50yrs
Coal
dead plant remains 250yrs
natural gas
dead animal remains 70yrs
How ar fossil fuels formed
They were formed from biological deposits over course of million of years
Carbon Dioxide
this greenhouse gas is the main waste product of burning fossil fuels, increased levels of co2 due to human activities are thought to be connected with global warming