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56 Cards in this Set

  • Front
  • Back
Define the Big-bang Theory
Everything in the universe starts together, than explodes outward.
Define Galaxy - then tell wich galaxy we are in.
Clusters of stars ( our galaxy is the milky way )
Tell how old the universe is.
the universe is 15 billion years old.
What is a light year ?
The distance that light travels in one year 9.5 times 10 *15 times
What's an AU ( ASTRONOMICAL UNIT ) ? and how many kilometers is it ?
Distance from our sun , and it's 150 million kilometers ( earth to sun )
Tell the the creation and science for day 1
Creation : light & dark.

Science : Energy first
Tell the creation & science for day 2
Creation : Seperating water

Science : First matter-(h20)gathers together
Tell the creation and science for day 3
Creation : Land, plants

Science : Land forms, plants
tell creation and science for day 4
creation : stars,moon

science : plants clean atmosphere ( so can see stars )
tell creation and science for day 5
creation : fish and birds

Science : Fish
tell creation and science for day 6
creation : Reptiles, animals,insects,humans

Science : mammals
Tell Creation and science for day 7
Creation : rested

Science : rested
Tell how long lifecycle of stars takes
10 billion years
Tell in order the lifecycle of stars
1 : Nebula - cloud of gasses and dust
2 : Stars form
3 : Blue or white star
4 : Yellow star
5 : Red giant
What kind of star is the sun , and how old is it ?
yellow star ,and is 4.6 - 5 billion years old
what's a constellation ?
a group of stars that form a pattern, not necessarily close
What happens after the red giant ?
If it has low mass it turns into a white dwarf then a
black dwarf
what happens If a red giant has a high mass ?
then it turns into a neutron star
what happens if a red giant has a very high mass ?
it turns into a black hole
how do you classify stars ?
by it's luminosity ( brightness )
how do you classify stars ?
by it's luminosity ( brightness ) and it's color-tempature
teoll the scale of classifying stars
0 is the brightest and 6 is the dimest
in wich order do the colors of the sun go ?
white is hotter than yellow and yellow is hotter than red
How old is then sun ?
4.6 billion years old
what kind of star is our sun ?
yellow star
how far from earth is the sun ?
1.4 million kilometers
How many earth's can fit in the sun ?
1 million
What is the difference between inner and outer planets ?
if it's inside the asteroid belt it's an inner planet
How many earth's can fit in the sun ?
1 million
how long does light take to get to earth from the sun ?
8 minutes
tell the order of the planets
tell the energy types
uv( ultra violet)
gamma rays(radio activity)
give examples of energy types
x rays
micro rays
cosmic rays
what is the sun made of ?
Hydrogen and helium
What is fusion ?
Hydrogen combined to form helium and give off energy
name the parts of the sun
sun spots-cold areas due to magnetic disturbances that affect our weather
solar flares- sudden releasees of energy that affect communications cause aurora borealis
solar wind- plasma causes comet tails to point away from the sun
what's an asteroid and it's orbit ?
an asteroid is rock, between mars and jupiter , the sun is in the center of it's orbit
what's a comet and it's orbit ?
it's ice, rock , gasses, and it's orbit is an oval around the sun being in the far south east
what's a meteorite ?
object that hit earth
what's a meteor ?
object headed for earth
what's a solar eclipse ?
when the moon passes in front of earth
what's a lunar eclipse ?
the moon moves into earth's darkest part of it's shadow
name the pats of a comet
coma- nucleus and halo

Tail- gas and dust
what are comets 2 origins ?
the kuiper belt- short period(less than 200 year orbit)

The oort cloud- long period( more than 200 year orbit)
what's the direction of comets?
always away from the sun
what's the composition of comets ?
ice and dust rock and gasses ( methane and amonite )
What are recent examples of famous comets ?
halley's comet
what is the spectrum of comets ?
light color pattern given off by a glowing object- depends on chemichal compositon
what's an orbit ?
path of one object takes around another that depends on the gravity - pull of object due to mass and distance and inertia - object motion will continue in motion unless acted on by force.
what's a revolution ?
orbiting around another object
what's a rotation ?
spinning on your own axis
what's day vs. night ?
facing sun or not
what depends on the seasons ?
tilted toward the sun or not
what's precession ?
earth wobbles as it rotates
what are tides caused by ?
moon's gravity pulling on earth's ocean water
what are moon's phases ?
wanning is going away and waxing is