This printable crossword puzzle on the topic of Environmental Science has 18 clues. Answers range from 6 to 21 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
substances capable of decomposing
a thick sticky form of crude oil
a non-toxic gas formed from decaying materials
a naturally-occurring mixture of hydrocarbons trapped underground
the protection and careful use of our natural environment
when dead plants and animals decay and their nutrients return to the soil
used to dilute bitumen and heavy oil so they flow through pipelines
a machine used to drill a hole through the earth's surface to produce oil or gas.
substances discharged into the air from factories, chimneys and car exhausts
the power necessary for things to function
surroundings in which people, plants and animals live
an assessment of the likely impact that an industrial project might have on the environment
the process of removing natural gas or oil from a reservoir
a person who studies the make-up of the earth's crust
liquid, gaseous or solid organic compounds containing only carbon and hydrogen
a gas produced when organic matter decomposes
a mixture of hydrocarbons found in sedimentary rock that is considered a cleaner fuel
natural resources that cannot be replaced in our lifetime