The Best Crossword Puzzle Maker Online
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Science Crossword Puzzle Week #13

Across
A process where the inner core of an atom is split and energy is released
Oil, or liquid fossil fuel found underground in rock formations
Main material in fossil fuels that were formed in the Carboniferous Period
A renewable energy source, but the material used in nuclear power plants is nonrenewable
The air was so dirty with soot and ash that people could not see across the street
Most nonrenewable energy sources are this
Down
Used when the coal is located deep below the Earth's surface
Resources that take a long to to regenerate such as coal, oil, and natural gas
A fossil fuel found underground and is mostly made up of methane
Used when the coal is located near the Earth's surface
Process where high-pressure water splits apart the rocks underground, releasing trapped gas
Black or brownish rock created from the carbonization of ancient plants and animals