How it is Made
Where was it found?
Dense Swampy Areas
How many types of mines are there?
3
What is the most common use for coal?
Generating electricity.
How many types of coal are there?
4
When was it formed?
~300 million years ago
What is surface/pit mining?
Removing the land above a large patch of coal to get to it. This typically for a pit.
What do we do with coal(ex. burn, eat, drink)?
We burn coal.
Never eat coal!!!
Lowest carbon density.
Lignite.
Where did coal get it's energy?
The plant absorbing the sun's energy.
How deep is a shallow mine?
~200 ft.
Coal has been on a sharp ________ over the past 15 years.
Decrease
2nd lowest carbon density.
Subbituminous.
Why is coal a non-renewable resource?
It takes millions of years to form.
How deep is a deep mine?
~300 ft.
What metal do we use coal's high burning temp. for?
We need coal to make steel.
2nd highest carbon density.
Bituminous.
What happened to the moisture in the decomposing plant matter while it was turning in to coal?
Hint: Not where, but how.
It was squeezed/crushed out of the plant when there was immense pressure placed upon it.
What is the most common type of Mine in the U.S.?
Surface mining.
Coal Can reach temperatures of up to _____ degrees fahrenheit.
Hint: It is probably higher than you think.
~4,400 degrees.
Highest carbon density.
Anthracite.