Question | Answer |
What do plants turn into after millions of years? | Coal |
plant decay | |
When decayed plants sink to the bottom of the ground what do they turn into? | peat |
What is the peat pushed by? | sand and soil |
What do sand and soil turn into? | rock |
What presses and heats the peat and what does it turn into? | rock and coal |
What 2 things could happen to miners because of coal mining? | death and scaring injuries |
What can happen to the tunnel the miners work in? | they can collapse and trap the miners |
What might be caused by breathing in the dust? | lung damage |
What can happen to the gases in the mines? | they can build up and explode |
What did the miners in the US form and in what year? | labor unions in 1890 |
What are groups of workers that try to get better working conditions? | labor unions |
What is black or brown mineral found in the ground? | coal |
Where is coal a natural resource? | The Southeast |
In the 1800's what 3 ways did the miners remove the coal? | shovels, pics, and sometimes explosives |
What year did 2 laws pass that no longer allowed children to work in mines? | 1940 |
What has made digging mines faster and safer? | mining machines |
What roles do humans still pay in digging mines? | run the machine, keep cables clear, and build supports to prevent cave ins. |
If coal is burned what does it produce? | heat and light |
What 2 things can coal be used for when it is burned, other than heat and light? | electricity and fuel |
What did the Hopi use coal for? | backing pottery |
Why did trains begin carrying coal across the country? | there was a demand for it |
What does more than half of our country's electricity come from? | burning coal |