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56 Cards in this Set

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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
mercury
venus
earth
mars
jupiter
saturn
uranus
neptune
pluto
tell the energy types
heat
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
corona
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
homaker-levy9
hale-bopp
hiyukate
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