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Mr.Olson 5th D2

5th Grade Science Test D2 St. Clair

The flow of energy from one orginism to another is called what? food chain
What do sewage treatment plants clean? waste water
What process breaks down carbon compounds in the carbon dioxide-oxygen cycle? cell respiration
What kind of consumers are humans? omnivores
What is the process by which water vapor (gas) is changed into a liquid called? condensation
Overlapping food chains form what? food webs
When nitrogen is "fixed" what is it changed into? nitrogen compounds
The process by which liquid water changes into water vapor is called what? evaporation
What compound acts as the building blocks of living things? proteins
In the nitrogen cycle, what is converted (changed) to a usable form? nitrogen gas
During phytosynthesis plants give off what as a waste product? oxygen
As plants decay they add________compounds to the air and soil. carbon
Created by: Kaylee Hoffman