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Astronomer
Directed Reading – 59, 62, 67, 70, 71, 76, 80
Due Thursday!
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$1,000
$125,000
$500
$64,000
$300
$32,000
$200
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$100
Galaxies are classified based on
their……….
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

A: shape

C: composition
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
B: color
D: temperature
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3 types–irregular, elliptical, & spiral.
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Which celestial objects orbit the
Sun?
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A: stars

B: planets
C: black holes

D: quasars


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Uranus
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Jupiter
Earth
Mercury
Mars
Venus
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Saturn
Neptune
Stars are classified by their…….
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

A: shape

C: temperature
and color.

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B: elevation
D: area of the sky.
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_______are a group of stars located
in the night sky.
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
A: Quasars

C: Nebulas


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B: Black holes
D: Constellations
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Constellations are stars that
are group together to help
identify their location.
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What is the diagram that illustrates
how the temperature and brightness
of a star is related?
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

A: Star map
C: Star chart

B: HR Diagram

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D: Road map
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The HR diagram illustrates the relationship
between how bright a star is, its color and
its temperature.
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What is the theory of the Big Bang?
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
A: that the universe was
B: a nuclear
weapon exploded.

created by a huge
explosion.

C: stars just appeared
from no where.

D: That the universe is
constantly expanding.
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The Big Bang Theory is one theory of
the formation of the Universe. It
states that the universe began with a
tremendous explosion.
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Astronomers use ____ ____ to measure
the distance to celestial objects outside
of our solar system.
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
A: meter sticks

C: yard sticks
B: light years

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D: their fist
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Light years are a measurement of how fast
light travels (time), not distance. Stars are
to far away to use other types of
measurement and would make the
numbers astronomical!
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A _______ is a baby star factory
made of gas and dust.
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
A: Nebula

C: Quasar


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B: Galaxies
D: Black hole
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Nebulas are remnants of stars that
have exploded in the past. Gravity will
pull the dust back together to form
new stars!
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If a star becomes a black hole
at the end of its life, it is …
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

A: nebula.

C: high mass star.

B: quasar.
D: low mass star.
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What is the process that
produces a star?
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
A: star birth


C: a galaxy
B: a nebula

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D: fusion
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Gravity pulls the nebula
together until it fuses together
in a nuclear reaction.
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A _______ is a dirty celestial
snowball that orbits the Sun.
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

A: comet

C: quasar
B: snowman

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D: star
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A comet is made of dry ice and stellar
dust. It orbits the sun, with the solar
wind blowing the tail away from the Sun.
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Halebopp
Comet
What season is it if the Earth tilts away
from the Sun in the northern
hemisphere?
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

A: Fall
C: Winter


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B: Spring
D: Summer
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In the winter, the Earth tilts away
from the Sun, causing it to be cooler
in the northern hemisphere.
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If the Earth is tilting toward the
Sun, it is ______ in the southern
hemisphere.
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
A: Spring

C: Fall

B: Summer

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D: Winter
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In the winter, the Earth tilts towards
the Sun, causing it to be cooler in the
southern hemisphere.
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If the Earth is not tilting toward or
away from the Sun, what season is it?
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

A: Winter
C: Summer

B: Fall or Spring

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D: Hunting
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The sun rises in the northeast
in the summer time and the
southeast in the winter time.
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Name the order of the universe
from the smallest to the greatest.
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

A: Planets, Earth, sun,
universe and galaxies
C: Moon, Earth, Sun,
Galaxy, Universe

B: Sun, Moon, Earth,
stars, planets

D: The Sun is the center
of the universe.
$1 Million Question
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Mars
1.88 yrs.
228 million km
Moon
29.4 days
Sun
Solar system
International
Space
Station
2 days
250 million yrs.
28,000
Light Years
Earth
365 days
150,000 km
Milky Way
Galaxy
100,000
Light years
Infinity