EARTH SCIENE

Cards (50)

  • inverse square laws
    gravitational and electric force are similar because both are
  • nebula
    cloud of gas and dust
  • 1/6
    moon's gravity is _____ of earth's
  • the bigger the mass, the greater the gravity
  • stars - self luminous
  • hottest stars - blue
  • brightest star - sirius
  • moon - not self luminous
  • 28 days
    every _______ days phases of moon
  • year
    season depends on
  • day
    daylight depends on
  • moon
    earth was tilted 23.5 degrees because of collision with
  • not all planets revolve on a star
  • moon reflect stars light
  • asteroid belt separates inner and outer planet
  • comet has path and is predictable
  • meteor - debris in space
  • shooting star - meteor in earth's surface
  • gravity
    planets formed because of
  • gravity
    attracts moon to planet and planet to star
  • gravity
    responsible for tides
  • planetisimals
    tiny grains/ debris that is being gathered by gravity to form planet
  • 365 and 1/4 day

    revolution of earth is
  • planet criteria
    orbit around sun, big enough for enough gravity to be spherical and clear similar size objects near path to sun
  • orbit
    path of planets
  • endogenic processes
    beneath surface such as: tectonic process (folding, faulting and shearing), tectonic forces and volcanism
  • exogenic
    degradation process (weathering, mass wasting, erosion, transportation)and aggradation process (deposition)
  • the more exposed the rock, the more vulnerable to weathering
  • carbonation
    observed in caves and acid rain
  • water
    most powerful erosion agen
  • mantle convection
    primordial heat, decay of radioactive isotopes and tidal friction
  • less pressure, the magma melts easier
  • more volatile, less viscous, low meling point
  • seafloor evidences
    deep sea drilling and magnetic strips
  • continental drift evidences
    paleomagnetism and polar wandering
  • granitic
    continent continent
  • basalt
    spreading center
  • andesite
    subduction zones
  • carbon 14
    shortest half life
  • uranium 238
    longest half life