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Chapter 2 E.S.

Environmental Science

astronomical distances are measured in units light-years
star cluster, a family between a million and a trillion stars galaxy
when planets travel around the sun in elliptical paths orbits
the divisions of the year and are also loosely based on the time it takes the moon to complete its cycle of phases months
the bulging of the ocean high tide
occurs between the two high-tide bulges low tides
when the sun and moon are in line, during the new moon and full moon phases, their gravitational force combine to produce very high tides spring tides
when the sun and moon are at a right angle to the Earth, during first- and third quarter phases, the result is lower than normal tides neap tides
when it takes the Earth 365.25 days to complete one revolution around the sun year
an imaginary line around the earth that divides it into northern and southern halves, called hemispheres equator
the time it takes earth to make one rotation on its axis day
the day where it has the longest period of daylight summer solstice
the shortest period of daylight in the Northern Hemisphere winter solstice
when the sun is directly overhead at the equator spring and autumnal equinox
doesn't need oxygen anarobic
needs oxygen arobic
what are the 3 distinct areas of the Earth? lithosphere, hydrosphere, atmosphere
the solid portion of the earth lithosphere
the water on or surrounding the earth hydrosphere
the sea of gasses the earth has trapped atmosphere
basic building block for all matter atom
what are the levels of matter 1.sub-atomic parts 2.forms an atom 3.element 4.mixtures 5.compounds (simple-inorganic, complex-organic)
what are the levels of living units 1.cell orginellis 2.cells 3.tissue 4.organs 5.organ systems 6.organism-a species 7.populations 8.communities 9.ecosystem 10.biomes 11.biosphere 12.earth 13.solar system 14.galaxy 15.universe
Created by: boydrac13