Petroleum Crossword
This printable crossword puzzle on the topic of Environmental Science has 20 clues. Answers range from 2 to 22 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
A substance believed to have been formed hundreds of millions of years ago when layers of dead plants and animals were buried beneath sediments such as mud, sand, silt, or clay at the bottom of the oceans.
petroleum product
petroleum ingredient
resource that can't be replaced once it is used up
Where can petroleum be found?
Process of separating petroleum into fractions?
How is petroleum separated into useful parts?
Crude oil is usually____
crude oil
fossil feul
Crude and refined oil is transported around the US mainly by
the ____ and thickness of petroleum depend on the substances that make it up
the main material used for building roads
substances that reduce friction between moving parts of equipment
Petroleum is the source of nearly all the fuels used for transportation and the many fuels used to produce heat and _______
used in furniture polish and milk cartons
By itself, petroleum is almost ______
The different fractions of petroleum have _____ boiling points
Fractional distillation of petroleum is done in a fractionating _____
fractionating towers may rise ___ meters or more
