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40 Cards in this Set

  • Front
  • Back
no atomosphere (perhaps some helium)
Mercury
airless
Mercury
moves swiftest around the sun
Mercury
heavily created
Mercury
no weather so craters remain the same
Mercury
has plains form valcanoes long ago
Mercury
one of the hottest and coldest planets due to slow rotation
Mercury
radar singals lead scientist to believe there is ice
Mercury
called Earth's twin due to similar mass, diameter, and density
Venus
morning/evening star
Venus
thick cloud cover
Venus
sulfuric-acid and carbon dioxide clouds
Venus
rains sulfuric-acid
Venus
rain evaporates before reaching surface
Venus
hotter on surface than Mercury
Venus
has channel longer thatn the Nile (no water, deeper than Grand canyon)
Venus
90 times the surface pressure of Earth
Venus
sun rises in west and sets in east, retrograde rotation
Venus
day is longer than the year
Venus
CO2 the the atmosphere causes greenhouse effect
Venus
nights are as hot as the days
Venus
few craters due to atmospheric pressure
Venus
a.k.a the red planet
Mars
red soil due to iron oxide-rust
Mars
CO2 atmosphere
Mars
2 moons: Phobos and Deimos
Mars
has Olympus-the largest known volcano in our solar system
Mars
surface is rocky and cratered
Mars
probes today are looking for water in rocks
Mars
no liquid water
Mars
norther ice cap-frozen water
Mars
southern ice cap-frozen CO2
Mars
has Valles Marineris-canyon
Mars
winds causing dust storms are common
Mars
thin CO2 atmosphere does not retain heat
Mars
a.k.a minor planets
asteroid belt
ceres is the largest asteroid
asteroid belt
may have lead to extiction of dinosaurs
asteroid belt
matter that failed to form planets due to Jupiter's gravitational pull
asteroids
most are small
asteroids