Transcript Stars and Galaxies QUIZ PREP

Stars and
Galaxies
QUIZ PREP
•What force caused
the atoms from the
big bang to form into
galaxies and stars ?
GRAVITY!
What type of
galaxy is the
Milky Way?
SPIRAL GALAXY
•What causes the
pressure in a star
that causes it to
begin its burning
reaction?
GRAVITY!
What is the last
stage a yellow star
goes through as it
dies?
It becomes a
red giant
What did the Big
Bang produce in
the way of
elements?
•HELIUM AND
HYDROGEN
What do
elliptical
galaxies look
like?
A fuzzy ball
• The temperature of a
star can be determined
by it’s color. What is
the correct order of
star colors from the
coolest to the hottest?
•RED
•YELLOW
•WHITE
•BLUE
•How does a blue
or white star die?
•They explode
•Which type of
galaxies
spin?
•Only spiral
galaxies spin.
•What is the
smallest type of
galaxy?
•Irregular galaxies
are the smallest
What am I?
•Spiral Galaxy
What am I?
•Elliptical Galaxy
What am I?
•Barred Spiral Galaxy
What am I?
•Irregular galaxy
•How do we know
the universe is
expanding?
•red shift
•What is a nebula
made of?.
•Dust and gas
from an exploded
star.
•The stars in an
irregular galaxy
are mostly ____?
•YOUNG STARS
•How do we know
the distance to a
star?
•Parallax
•What is the type of
star that lives the
longest?
•Red Dwarf
•What is the type of
star that lives the
shortest?
•Blue star
•What type of
star is our sun?
•YELLOW
•What type of star
has the most
gravity?
•BLUE STAR
•What type of star
has the least
gravity?
•Red Dwarf
•Why does Earth
have to be on an
outer arm of the
Milky Way for us to
live here?
•Too much radiation
from crowded stars
closer to the center.
•What is a light
year?
•The distance light
travels in 1 year
•If the universe
stopped expanding
today, would we be
able to know that
right away?
•Nope, it would take
billions of years for
the light from them
to get to us.