properties of the earth Flashcards
when did the late heavy bombardment happen
4.5 million years ago
earth’s sister planet
venus
littered with craters
venus
paved over venus’ surface and blotted out the other craters
immense lava flows
the blue planet
earth
earth’s primordial atmosphere was modified by
outgassing of the mantle
what formed the earth’s atmosphere
gases from volcanic activity
this planet retained considerable internal heat
earth
the red planet
mars
what is the average temperature in mars
negative 56 degrees
where does water exist on mars
polar ice caps and soil
influence how quickly atoms and molecules move
temperature
influences chemical reaction
temperature
universal solvent and a transport medium
water
invisible envelope of gas surrounding us
atmosphere
screens out harmful ultraviolet and x-rays from the sun
atmosphere
ability to do work
energy
organisms use light or chemical energy to run their life processess
energy
STATE THE FACTOR AND RATE
interferes with the reactions necessary for life
temperature - not enough
STATE THE FACTOR AND RATE
interferes with the reactions necessary for life
temperature - not enough
STATE THE FACTOR AND RATE
liquid water is unavailable
temperature - not enough
STATE THE FACTOR AND RATE
liquid water can still exist under certain conditions
temperature - just right
STATE THE FACTOR AND RATE
quickly evaporate water
temperature - too much
molecules start to break apart
temperature - too much
STATE THE FACTOR AND RATE
chemicals that cells need for growth are not transported to cell
water - not enough
STATE THE FACTOR AND RATE
water is regularly available
water - just right
STATE THE FACTOR AND RATE
it is not a problem as long as it is not so toxic that it interferes with the chemical of life
water - too much
STATE THE FACTOR AND RATE
gas molecules escape to space leaving planets with no shield
atmosphere - not enough
STATE THE FACTOR AND RATE
it keeps the surface warm and protects from radiation
atmosphere - just right
STATE THE FACTOR AND RATE
the surface would be too hot for life
atmosphere - too much
STATE THE FACTOR AND RATE
organisms die due to little sunlight
energy - not enough
STATE THE FACTOR AND RATE
cells can run chemical reactions necessary for life
energy - just right
STATE THE FACTOR AND RATE
too many harmful rays
energy - too much
STATE THE FACTOR AND RATE
organisms cannot grow
nutrients - not enough
STATE THE FACTOR AND RATE
activities can transport and replenish the chemicals required by living organisms
nutrients - just right
STATE THE FACTOR AND RATE
too active circulation which interferes with an organism’s ability to get enough of these
nutrients - too much
used to build and maintain an organism’s body
nutrients
