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February 14, 2012
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  >> Crossword Puzzle >> Environment >> ID #1595848  |   Show DetailsPrinter Friendly Page Tell A Friend
Science and Nature
Words having to do with science and nature
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This crossword is about science and nature. Some are two words meaning one thing.

Enjoy!
Across:
 2 waste material broken down and goes back into ecosystem
 4 system of collecting, sorting, and reprocessing old material into usable raw materials.
 5 what is used to tie someone or something
 7 interconnected and symbiotic grouping of animals, plants, fungi, and microorganisms.
 10 branch of science concerned with the interrelationship of organisms and their environment.
 12 petroleum fuel, used to power cars, trucks, lawn mowers, etc.
Down:
 1 lands on which trees are the principal plant life.
 2 part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life; (2) the living organisms and their environment composing the biosphere.
 3 building made with translucent (light
 6 form of bone marrow cancer marked by an increase in white blood cells.
 8 unregulated growth of changed cells; a group of changed, growing cells (tumor).
 9 dense, discolored radiation fog containing pollutants
 11 of or relating to life.
 
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