Space Flashcards
(38 cards)
what is the order of the earths layers from the inside out
the inner core, outer core, mantel, crust,
what are the 4 layers of the atmosphere
troposphere, stratosphere, mesosphere, thermosphere
how thick is the earths crust
5 to 70 km thick
what creates thin crust
ocean
continents are thicker but….
less dense
as we go down in the crust the air levels gets….
higher
what are tectonic plates
the are surrounded by every country on earth
what layer of the earth is solid but slow moving
mantle, magma
what is a fault line
were to tectonic plates meet
how thick is the mantle
2890 km thick
what layer on earth is responsible for the magnetic field
outer core
what year was the inner core discovered
1936
what part of the atmosphere helps keep the planet safe
magnetic field
the atmosphere is held by…
gravity
what is another name for the stratosphere
ozone layer
x rays and UV rays can be found is which layer of the atmosphere
thermosphere
what provided 99.5 light in the whole world
stars
what kind of star is the sun
main sequence yellow dwarf
one solar day = how many earth days
28
the primary fuel for the sun is…
hydrogen
what is the percentage of hydrogen in the core of the sun
75 percent
what is the percent of hydrogen outside of the core
24 percent
what is accretion
the gathering of stars
what is nebula
when stars gather together and die
