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76 Cards in this Set
- Front
- Back
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earth-like planets
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TERRESTRIAL PLANETS
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TERRESTRIAL PLANETS
are made of |
rock
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name the four TERRESTRIAL PLANETS
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Mercury, Venus, Earth, and Mars
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solar year of mercury
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88 Earth days
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soalr day of mercury
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176 Earth days
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what is the Densest, smallest, and closest to the Sun
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mercury
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this planets core is believed to have cooled and it is no longer
tectonically active |
mercury
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this planet has ridges and mountains caused by the crust cooling and shrinking
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mercury
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the craters on mercury are
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impact craters
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which planets do not have a moon
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venus and mercury
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temperatures on mercury are
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Daytime~350C or660F
Nighttime~-170C or -280F |
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does mercuryhave extreme temps
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most extreme of all planets
-280F to as high as 660 F in one day |
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what elements are inthe air of mercury
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H (hydrogen), He (helium), Na (sodium), K (potassium), and Oxygen
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mercury has the greatest amount of what element
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iron
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what space probe mapped the surface of mercury
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mariner 10
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what did mariner 10 discover on mercury
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ice at the polar regions
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what current probe is on way to mercury
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messenger
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when can mercury be seen from earth
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low in sky at dusk or dawn
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mercury is known as what color
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red planet
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venus is common to what planet
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earth
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how does venus atmosphere differ from earths
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venus atmosphere is thicker
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volcanic activity
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Vulcanism
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venus rotates or spins....
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opposite direction of the other planets
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the atmosphere of venus consist of
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CO2 with some Nitrogen and SO3
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SO3 appears on venus as
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sulphuric acid rain
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venus atmosphere is so thick plus sulphur causes
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greenhouse effect.....hot
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this is the HOTTEST planet
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venus
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what probe did the russians send to venus
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venura
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what did venura do on venus
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mapping and then landed
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what US probe went to venus
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magellan
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what made the magellan probe different
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used a balloon to test the atmosphere gases
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did the magellan balloons immediately explode in the atmosphere
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no the balloon lasted for weeks
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what two things did magellan do
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test atmosphere
map ground |
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how did magellan map surface of venus
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by radar
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how many moons does earth have
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one
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which planet has a strong magnetic pull
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Earth ie gravity
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Earth has a lot of this element
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h2o..water
found in solid..ice liquid...water gas...cloud/vapors |
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what is the main atmosphere of earth
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Nitrogen , Oxygen and CO2
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tectonically alive means
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tectonic plates shift, volcanos erupt, etc
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which two planets are tectoniacally alive or vulcanic
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earth and venus
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another name for earth
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The Third Rock From The Sun
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color of earth from space
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blue
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color of venus and why
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yellow: sulphur/ sulphuric acid
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what maintain the earths spin & tilt, protects it from a lot of space debris, & contributes to its tectonic activity
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the moon
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Chemical reactions occur on the earth but can be REVERSED why
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water and moderate temperature
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what protects earth from MOST space debris
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moon and atmosphere
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do we have a bad greenhouse effect
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atmosphere perfect thickness =keeps warm enough for water to exist in all three phases. .ice, water.vapor
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what has caused mass extinctions and altering the path of evolution
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impacts from space
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how is earths rock different from other terrestrial planets
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three levels:core, mantle then crust..also has moderate atmosphere and plate tectonics
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what is believed to have created the three levels of earth surface: core ,mantle, crust
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impacts
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closest neighbor to Earth
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mars
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name mars two moons
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Phobos (meaning fear)
Deimos (meaning terror) |
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what is the shape of mars moons
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very small, irregular shaped objects
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what are Mars moons believed to be?
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asteroids caught in the gravity pull of Mars
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what is happening to the moons of mars that isnt happening to Earths moon?
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slowly descending to Mars surface...One is expected to impact within your life-time
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color of mars
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red
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why is mars red
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iron oxide on surface
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where did the iron oxide come from on mars
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oxygen once in air plus iron in soil...
iron + oyxgen =iron oxide |
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is atmosphere of mars thick or thin
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thin
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what element is most of mars atmosphere
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carbon dioxide
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was there ever oxygen on mars
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yes but it bonded with iron on mars surface
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do mars polar caps have ice
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some dry ice and some regular ice depending on the season
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describe Southern Hemisphere of Mars
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heavily cratered with highlands much like the Moon
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describe Northern Hemisphere of Mars
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home to giant shield volcanoes
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name biggest Volcano (and mountain) in the solar system
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Oympus Mons
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what planet do you find Olympus Mons
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mars
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what is on Mars equator
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Valles Marineris
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what is Valles Marineris
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huge canyon on the equator of mars
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how deep is Valles marineris
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over 4000 km
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is there liquid water on mars
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looks like there was at one time; may still be there
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what proff did water exist onMars
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erosion and lake beds
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why doesnt mars hold life like earth does
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was killed during a late accretion incident
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is there life on mars
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not seen but clues that there may be
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why is there no longer any volcanic or plate-tectonic activity on Mars
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smaller core is cooler- no heat
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what little atmosphere Mars had has been lost why
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lack of volcanoes
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why did lack of volcanoes cause atmosphere loss on mars
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caused "low gravity" and "UV ray action"
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