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Cycles/Science

Test 1 on Cycles in Science

QuestionAnswer
What are the FOUR elements most abundant in living organisms? - Carbon - Oxygen - Nitrogen - Hydrogen
What is an EMISSION? a pollutant released into the atmosphere
What is DENITRIFICATION? releasing nitrogen from the soil back into a form that can be used by plants.
What is NITROGEN FIXATION? the process of converting nitrogen in the air into a form that can be used by plants.
What is a LEGUME? A plant with nitrogen fixing nodules on their roots
What is CELLULAR RESPIRATION? Process by which an organism's body releases energy from carbon-based molecules.
What is PHOTOSYNTHESIS? The process plants use to make sugar form sunlight water and carbon dioxide.
What are FOSSIL FUELS? Fuels used in cars and factories that make pollution.
What is a COLLECTION? Precipitation that gathers into a body of water.
What is RUNOFF? Precipitation that flows over the surface of soil.
What is PHOTOCHEMICAL SMOG? brown smog created when pollutants react with the air.
What is BIOCHEMICAL CYCLE? cycling of chemical elements through the living and nonliving parts of an ecosystem.
What is a NODULE? swelling on a plant root that contains nitrogen-fixing bacteria.
Can you draw a water cycle? (Look at in note book)
Can you draw a carbon and oxygen cycle? (Look at in notebook)
How should you show care with a microscope? - Always hold the base and arm when moving microscope. - Always start with the smallest objective and move stage to the very bottom when adding a slide. - When using larger objectives, only use fine adjustments
What will affect an ecosystem? Cutting down trees would result in too much carbon dioxide for producers to take care of, the ecosystem could lose nitrogen and important nutrients in any ecosystem.
Producers plants and organisms that go through photosynthesis.
Created by: alybear28