fadtp 3-1
DESCRIPTION
FADTP 3-1. We are learning to : describe how objects in the solar system are in regular and predictable motions that explain days, years, and seasons. We are looking for : description of: Days- Earth rotates on its axis every 24 hours Years-Earth revolves around the sun 365.25 days - PowerPoint PPT PresentationTRANSCRIPT
FADTP 3-1
We are learning to: describe how objects in the solar system are in regular and predictable motions that explain days, years, and seasons.
We are looking for: description of: • Days- Earth rotates on its axis every 24 hours• Years-Earth revolves around the sun 365.25
days• Seasons-Earth revolves around the sun as the
Earth is tilted on its axis
Seasons
• Seasons are caused by the tilt of the earth’s axis as the earth revolves around the sun.
• Vernal equinox is the beginning of Spring.
• Summer solstice is the beginning of Summer.
• Autumnal equinox is the beginning of Autumn.
• Winter Solstice is the beginning of Winter.
3
Motion of the Earth
• Rotation is the spinning of the earth on its axis.– This movement
determines the length of a day, 24 hours.
• Revolution is the movement of one object around another object.– This movement
determines the length of a year, 365.25 days.
– Every four years is a leap year.
4
Why do we have night and day?
Earth’s
rotat
i...
Earth’s
revo
lu...
Tilt of th
e Ea..
.
I nee
d Help!
0 000
A. Earth’s rotationB. Earth’s revolutionC. Tilt of the Earth on
its axisD. I need Help!
0of26
10
What causes Earth to experience different seasons?
It ro
tates
on ...
It rev
olves
on...
It is
tilted
w...
It is
tilted
w...
I nee
d help!
0 0 0000of26
A. It rotates on its axis while it revolves around the sun
B. It revolves on its axis while it rotates around the sun
C. It is tilted while it rotates around the sun.
D. It is tilted while it revolves around the sun.
E. I need help! 10
If the Earth’s Revolution was slower, we would experience
Longer d
ays
Shorter d
ays
Longer y
ears
Shorter y
ears
I nee
d help!
0 0 000
A. Longer daysB. Shorter daysC. Longer yearsD. Shorter yearsE. I need help!
0of26
10
Of the following, which does not affect seasons?
Earth i
s tilte
d 23.5
d...
The Eart
h revo
lves a
...
The Eart
h’s dist
ance
...
I nee
d help!
0 000
A. Earth is tilted 23.5 degrees
B. The Earth revolves around the sun
C. The Earth’s distance from the sun
D. I need help!0of26
10
3. REVIEW
1. PRACTICE
4. FRONTLOADPre/Post Check Key Terms
2. EXTENSION
Pretend you live in Northern Alaska. Write a paragraph about what the hours of day and night would be like the summer and winter.
Make a drawing that illustrates the difference between a year and a day.
____ Eclipse ________ Lunar Eclipse ________ Solar Eclipse ____
____ Tides ________ Spring Tide ________ Neap Tide ____
____ Moon Phases ________ Crater ____
What laws of motion apply to our new astronomy unit? Explain.
We are learning to: describe how objects in the solar system are in regular and predictable motions that explain phases (moon cycles), eclipses, tides We are looking for: a description of -Phases-moon revolves around the Earth approximately once a month
-Eclipse-are random predictable; one object moves in front of another object in relation to the position of the sun
-Tides-high tide occurs approximately twice a day due to the gravitational pull of the moon
Phases of the Moon
• The moon is illuminated by the sun.
• The moon reflects sunlight to the earth.
• The different phases of the moon is affected by the moon revolving around the earth as the earth revolves around the sun.
• The complete cycle of phases takes 29.5 days, this is known as a synodic month.
• Each phase takes about 3.5 days.
11
12
Solar Eclipses
• Occurs during a new moon when the moon is between the sun and earth.
• The shadow is the umbra, the partial shadow is the penumbra.
• Doesn’t happen every month because the moon’s orbit around the earth is tilted and this prevents the sun, earth and moon from being in a straight line.
• Do not look at a solar eclipse without protective eye gear.
13
Lunar Eclipse
• Occurs during a full moon phase when the earth is between the sun and the moon.
• More common than the solar eclipse.
• Can be view without protective eye gear.
14
Tides
• Tides are caused by the gravitational attraction between the moon and earth.
• High tides are 12.5 hours apart.
• Spring tide is the highest high tide and occur at full and new moon phases.
• Neap tide is the lowest high tide and occur at first and last quarter moon phases.
Which phase occurs when the moon is in between the Earth and
the sun?
Full moo
n
New m
oon
1st Q
uarter
moon
3rd q
uarte
r moo
n
0 000
A. Full moonB. New moon C. 1st Quarter moonD. 3rd quarter moon
0of26
10
What causes us to see different phases of the moon?
Light re
flects
...
The moo
n revo
l...
We s
ee diffe
re...
All of th
e abo...
0 000
A. Light reflects off of the surface of the moon.
B. The moon revolves around the Earth.
C. We see different perspectives of the moon.
D. All of the above.
0of26
10
What is the main cause of tides?
The gravita
tional pull o
f...
The gravita
tional pull o
f...
The gravita
tional pull o
f...
I need help!
0 000
A. The gravitational pull of the moon
B. The gravitational pull of the sun
C. The gravitational pull of the Earth
D. I need help!
0of26
10
If the sun, moon, and Earth are perfectly aligned (as pictured), what event will occur on Earth?
Nea
p Tide
Solar E
clipse
Lunar Ecli
pse
Seaso
nal C
hange
0 000
A. Neap TideB. Solar EclipseC. Lunar EclipseD. Seasonal Change
0of26
10
When studying a solar eclipse, which would be a proper method of viewing the sun?
Wea
r sung
lasse
...
Use a
teles
cop..
.
Use a
magnify
i...
Use fil
ters t
h...
I nee
d help!
0 0 000
A. Wear sunglassesB. Use a telescopeC. Use a magnifying
glassD. Use filters that are
specifically designed to view eclipses
E. I need help!
0of26
10
FOUR BLOCK INTERVENTION INSTRUCTIONS
1. If you have not missed any questions, start with block #2 and then complete blocks #3 and #4.
2. If you have missed 2 or more, meet with the teacher.
3. Everyone else starts in block #1 and then complete blocks #2, #3, and #4.
3. REVIEW
1. PRACTICE
4. FRONTLOAD
2.EXTENSION
What would happen to the earth’s tides if the moon was not present?
Using your knowledge of moon, write a paragraph (6-10 sentences)explaining why or why not?
Draw a diagram illustrating all of the phases of the moon.Label all of the phases.
What do you know about gravity and inertia?
Explain how the moon affects the earth.
We are learning to: explain that gravitational force determines motions in the solar system and keeps the planets in orbit around the sun. We are looking for: explanation that
*All objects in the solar system have gravity.
*Sun has the greatest mass, thus has the greatest gravitational pull within our solar system.
*Since planets have inertia, they do not get pulled into the sun.
*Gravity keeps the planets in orbit.
Forces that Hold Earth in Orbit around the Sun
• Gravity is the attraction between any two objects.
• Inertia is the tendency of an object to resist change in motion.
• The balance between gravity and inertia keeps earth in orbit around the sun.
23
What is an object’s resistance to a change in motion?
Gravity
Inerti
a M
ass
Fricti
on
I need help!
0 0 000
A. GravityB. InertiaC. MassD. FrictionE. I need help!
Predict what would happen if Earth stopped its forward motion around the sun?
It will
fly off i
nto spac
e.
It will
hit the n
eares
t p...
It will
get pulle
d into t..
It will
contin
ue to
rev..
.
0 000
A. It will fly off into space.B. It will hit the nearest
planet.C. It will get pulled into the
sun.D. It will continue to
revolve.
What keeps planets revolving around the sun?
The sun’s
grav...
The plan
et’s m
...
The plan
et’s m
...
The Sun’s
iner
...
I nee
d help!
0 0 000
A. The sun’s gravitational pull.
B. The planet’s mass.C. The planet’s magnetic
field.D. The Sun’s inertia.E. I need help!
Please copy circle and do this.
Orbit
Gravity
• Fill in two words that closely relate to the two words given.
• Write a paragraph explaining the significance of each word and how they fit together to form a concept?
We are learning to: *Compare the composition and orbits of comets and asteroids with that of Earth.
We are looking for: Composition of comets, asteroids, and Earth1. Earth is composed of rock with many layers and has a core of dense metal2.Comets are composed of ice and dust (dirty snowball)3. Asteroids are composed of chunks of solid rock with heavy metalOrbits of comets, asteroids, and Earth’s1.Earth’s orbit is elliptical 2. Comet’s orbit is elongated and elliptical 3. Asteroids are elliptical and orbit in the asteroid belt or the Kuiper belt.
We are learning to: Describe the effect that asteroids or meteroids have when traveling through space and entering planetary atmospheres.
We are looking for: 1. Asteroids are large rocky objects that orbit the sun. If
they hit the Earth the impact could be catastrophic. 2. Meteorites are small rocky objects hit the Earth all the
time and do not cause much damage. 3. A rock changes its classification based on its location:
Meteoroid – rock located in outer spaceMeteor – rock burning up in the Earth’s atmosphere (Shooting Star/Meteor
Shower)Meteorite – rock that hits the ground
Members of the Solar system
• Sun (closest star to earth)
• Planets• Moons• Asteroids• Meteoroids• Comets
30
Inner Planets: Mercury
• 0.4 AU from the sun.• Rotational period 59 Earth
days.• Revolution period of 88 Earth
days.• No moon.• Average temperature range
is 670 K to 103 K.• Almost no atmosphere and
no water.
31
Inner Planets: Venus
• 0.7 AU from the sun.• Retrograde rotational period
243 Earth days.• Revolution period of 225
Earth days.• The day on Venus is longer
than a year.• No moon.• Average temperature range
is 700 K.• Atmospheric pressure 90
times that of Earth.• Atmosphere of sulfuric acid.• Large amount of CO2 causing
the Greenhouse Effect.
32
Inner Planets: Earth
• 1.0 AU from the sun.• Rotational period 24
hours.• Revolution period of
365.25 days.• One moon.• Atmosphere 78%
nitrogen, 21% oxygen & 1 % carbon dioxide.
• 71 % of Earth’s surface is covered by water.
33
Inner Planets: Mars
• 1.5 AU from the sun.• Rotational period 23.9 Earth
hours.• Revolution period of 687
Earth days.• Two moons: Phobos &
Deimos.• Average temperature range
is 144 K to 300 K.• Thin atmosphere of carbon
dioxide and some water.• Largest volcano is Olympus
Mons.• Polar caps of dry ice.
34
Asteroid Belt
• Found between the orbits of Mars & Jupiter.
• Trojan refers to asteroids or moons that share the same orbit as a larger planet or moon, but does not collide because it orbits.
35
Outer Planets: Jupiter
• 5.0 AU from the sun.• Rotational period 9.9 hours.• Revolution period of 11.9
earth years.• 63 moons including Io,
Europa, Ganymede & Callisto.
• Has rings.• The Great Red Spot is a
major storm on the surface of the planet.
• Average temperature of 163 K.
36
Outer Planets: Saturn
• 9.6 AU from the sun.• Rotational period 10.7 Earth
hours.• Revolution period of 29 Earth
years.• Has 47 moons including
Titan.• Has a ring system.• Density is less than water.• Average temperature of
133 K.
37
Outer Planets: Uranus
• 19 AU from the sun.• Retrograde rotational period
17.2 Earth hours.• Revolution period of 83.7
Earth years.• 27 moons.• Has rings.• Discovered by William
Herschel in 1781.• Average temperature is 78 K.
38
Outer Planets: Neptune
• 30 AU from the sun.• Rotational period 17 Earth
hours.• Revolution period of 164
Earth years.• 13 moons.• Has rings.• Discovered by John Galle in
1846.• Average temperature is 73 K.
39
Planet diameters
• Mercury - 4879 km• Venus – 12,104 km• Earth – 12,756 km• Mars – 6794 km• Jupiter – 142,982 km• Saturn – 120,536 km• Uranus – 51,118 km• Neptune – 49,528 km
40
An icy object that has an elongated orbit around the sun is referred to as
a(n)….
A. AsteroidB. CometC. MeteorD. MeteoriteE. I don’t know!
0of26
10
The flash of light produced when a meteoroid passes through the Earth’s
atmosphere is a(n)
A. AsteroidB. CometC. MeteorD. MeteoriteE. I don’t know!
0of26
10
Why does a meteoroid create a streak of light when entering the Earth’s atmosphere?
A. Light from the sun is reflected of the surface of each
B. Energy is released from the objects
C. Lightning is produced from these objects
D. Light is a result of friction from the gasses in the atmosphere
E. I don’t know!
0of26
10
Which of the following applies to meteoroids and asteroids.
A. They are similar in size.B. They are rocky and/or
metallic.C. They are composed of
frozen gases, ice, and dust.
D. They orbit the sun in highly elliptical patterns.
E. I don’t know!
0of26
10
Which of the following objects would cause the most damage if it hit the Earth?
A. AsteroidB. MeteoroidC. MeteoriteD. MeteorE. I don’t know!
0of26
10
Oort Cloud
• The Oort Cloud is the area surrounding the solar system where the comets are found.
• Comets are dirty snow balls.• Comets have a head
(nucleus & coma) and a tail.• Halley’s comet appears every
76 years.
47
Meteors
• Meteoroids are pieces of rock from object such as asteroids that fly through space.
• Meteors are meteoroids that are burning up in the earth’s atmosphere (shooting stars).
• Meteorites are meteoroids that have landed on the earth’s surface.
48
We are learning to: identify and describe telescopes, probes, satellites, and space crafts We are looking for:telescope- refracting, reflecting, and radio are used to view distant objects
probe-machines sent to other locations in the solar system and are used to investigate/explore
satellite-orbits around the earth or other planets and are used to take photos and collect data
space craft-mode of transportation to send humans to locations in the solar system;
We are learning to: examine advances of different people, culture, and times in astronomy.
We are looking for: examples of how telescopes have changed and
been improved over time and their impact on science and technology .
51
Tools to Study the Universe
• Reflecting telescopes use mirrors to magnify the image.
• Refracting telescopes use lenses to magnify the image.
• Radio telescopes collect radio waves to study the stars.
• Spectroscopes analyze the light given off by stars to indicate composition, movement and temperature of stars.
53
Refracting Telescope
54
Radio Telescope
Which type of telescope focuses light using a mirror?
Reflec
ting Tel.
..
Refrac
ting T
el...
Radio Tele
scop..
.
Infra
red Tele
s...
I nee
d help!
0 0 000
A. Reflecting TelescopeB. Refracting TelescopeC. Radio TelescopeD. Infrared TelescopeE. I need help!
Which type of telescope focuses light through transparent lenses?
Reflec
ting Tel.
..
Refrac
ting T
el...
Radio Tele
scop..
.
Infra
red Tele
s...
I nee
d Help
!
0 0 000
A. Reflecting TelescopeB. Refracting TelescopeC. Radio TelescopeD. Infrared TelescopeE. I need Help!
One of the greatest advancements in astronomy was the telescope. Which is
the correct order of advancements?
0 0 000
A. Radio- refracting-reflectingB. Reflecting – refracting –
radioC. Refracting-reflecting-radioD. Radio- reflecting-refractingE. I need help!
Which of the following is an advantage of a space-based, satellite telescope like
Hubble?
0 0 000
A. Satellite telescopes are much closer to the stars.
B. Satellite telescopes are able to see through solid objects.
C. Satellite telescopes can detect wavelengths that are blocked by the atmosphere.
D. Satellite telescopes have the ability to see the future.
E. I need help!
Focus Free Write (3 minutes)
Explain how the advancements in telescopes have helped astronomers learn more about the universe.
When finished, trade your paper with a partner. Revise if there are misconceptions or any incorrect information.
09000 3 87654321520 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Explain how the advancements in telescopes have helped astronomers learn more about the universe.
We are learning to: explain interstellar distances are measured in light years We are looking for: the explanation of and the use of the light year
*explain a light year as the distance light travels in a year
*explain that distances are too great to be measured in miles or kilometers
Distances to Stars
• A light year is the distance light travels in year.
• Astronomers often use parallax to measure distances to nearby stars.
• Parallax is the apparent change in position of an object when you look at it from different places.
62
A light year is a measurement of…
Distan
ce Tim
e
Speed
Accele
ration
I don’t k
now! ..
.
0% 0% 0%0%0%
a) Distanceb) Timec) Speedd) Acceleratione) I don’t know! I
need help!
0of26
10
Why do astronomers measure interstellar distances in light years instead of
kilometers or miles?
Light y
ears
ar...
Mile
s and
kilo...
Mile
s and
kilo...
I don’t k
now! ..
.
0 000
A. Light years are a measure of time.
B. Miles and kilometers are too small of a unit.
C. Miles and kilometers are too large of a unit.
D. I don’t know! I need help!
0of26
10
You are viewing a star that is 20 light years away. When was the light from this star
produced?
Before you w
er...
After you w
ere...
10 years
ago
2 years ag
o
I don’t k
now! ...
0% 0% 0%0%0%
a) Before you were born
b) After you were born
c) 10 years agod) 2 years agoe) I don’t know! I
need help!
0of26
10
What if….there was a planet in another solar system within our galaxy that could support life. The beings on this planet have a telescope that can observe beings on Earth. If the planet is 10 light years away, who would they see as president? Use the timeline below and provide an explanation to support your answer.
After answering this question, meet with a partner to compare your responses. Collaborate to make a new paired response to the question.
1993-2001Bill Clinton
1989-1993George H.W. Bush
1981-1989Ronald Reagan
2009-2013Barack Obama
2013-2021Eugenia Green
2001-2009George W. Bush
2021-2025Cory A. Booker
We are learning to: examine the life cycle of a star (characteristics; HR diagram)
We are looking for: a description of how stars are classified by
characteristics and then organized on an HR diagram.CharacteristicsSize- Giant, main sequence, and dwarfTemperature- blue=hot; red=coolerBrightness- apparent brightness and absolute magnitudeHR diagram shows temperature, brightness, color of stars and where the star is in its life cycle.
Used to graph the surface temperature (x-axis) vs. brightness (y-axis)
Hotter stars are on left side of graph; cooler stars on the right side of the graph
Brighter stars on top of graph; dimmer stars on bottom of graph
Classifying Stars
• Stars are classified by size, temperature, and brightness.
• Temperature of a star is indicated by color, hot stars are blue & cooler stars are red.
• Apparent brightness is the brightness of a star as observed from earth.
• Absolute magnitude is the brightness of a star observed at the distance of 10 parsecs.
68
Hertzsprung-Russell Diagram
• H-R diagram is a graph of the Milky Way galaxy.
• Surface temperature is graphed on the x-axis.
• Absolute magnitude is graphed on the y-axis.
69
Types of Stars
• Blue super giants have a high brightness and high temperature.
• Red giants & super giants have a high brightness and low temperature.
• White dwarfs have a low brightness and high temperature.
• 90% of all stars appear on the Main Sequence going from the upper left to the lower right corner.
70
Which characteristic of stars cause them to be different colors?
chemica
l compositi
on
distance siz
e
temperat
ure
I need help.
0% 0% 0%0%0%
a) chemical composition
b) distancec) sized) temperaturee) I need help.
0of26
10
Which color would describe the youngest and hottest star?
blue re
d
orange
yello
w
I need help!
0% 0% 0%0%0%
a) blueb) redc) oranged) yellowe) I need help!
0of26
10
Which star would be the brightest if all the stars are the same distance
from Earth?
Main
sequen
ce
Neutro
n Star
Red su
per g
ian...
Whit
e dwarf
I nee
d help.
0% 0% 0%0%0%
a) Main sequenceb) Neutron Starc) Red super giantsd) White dwarfe) I need help.
0of26
10
How would you classify our star, the sun, on the H-R diagram?
Main
sequen
ce
Red gian
t
Whit
e dwarf
Red su
pergi
ant
I nee
d help.
0% 0% 0%0%0%
a) Main sequenceb) Red giantc) White dwarfd) Red supergiante) I need help.
0of26
10
Red Giant Main Sequence
Life Cycle of Star Interactive Video
• http://www.asc-csa.gc.ca/eng/educators/resources/astronomy/multimedia/module2/star_lifecycle/star_lifecycle.swf
We are learning to: Examine the life cycle of a star and predict the next likely stage .
We are looking for: progression of the stages of a star’s life
Nebulae- cloud of gas and dust Protostar- fusion beginsMain sequence- average starGiant/red-giant- more massive starsNova/supernova - exploding starWhite dwarf- no nuclear processBlack dwarf- no heat or lightBlack Hole (area of large gravitational attraction) or Neutron
star (very dense star)
78
Birth of a Star
• Stars are born from a cloud of gas or dust called a nebula.
• The cloud condenses to form a protostar.
• The protostar becomes a star when the core of the star reaches 15,000,000 K and nuclear fusion begins.
79
Star Life
• The more massive stars live for millions of years.
• The less massive stars live for billions of years.
• Through out the life of stars, elements are fused into larger elements (hydrogen to helium to carbon to oxygen to iron).
80
Life Cycle of Stars
• Stars that are less massive go from a main sequence star to a red giant and finishes as a dwarf star.
• Stars that are more massive go from a giant star to a supernova.
81
End of a Star’s Life• Star that are less than 1.4
solar masses will use up all of its hydrogen and helium and become a white dwarf.
• Stars that are between 1.4-3.0 solar masses will produce a Type I supernova, leaving a neutron star.
• Stars that are greater than 3.0 solar masses produce a Type II supernova, collapsing and producing a black hole.
If given a protostar, what is the next likely stage of the star?
Super Gian
t
Nova
Main
Seque
nce
Neutro
n Star
I nee
d some h
e...
0% 0% 0%0%0%
a) Super Giantb) Novac) Main Sequenced) Neutron Stare) I need some help
0of26
10
What is the first stage of the birth of a star?
Protosta
r
Nebula
Gian
t
Dwarf
I nee
d some h
e...
0% 0% 0%0%0%
a) Protostarb) Nebulac) Giantd) Dwarfe) I need some help.
0of26
10
What happens to the most massive stars as they near their death?
super
nova to
...
super
nova to
...
becomes
a whit..
.
nothing happen
...
I nee
d some h
e...
0% 0% 0%0%0%
a) super nova to a black hole
b) super nova to a red giant
c) becomes a white dwarf
d) nothing happense) I need some help.
0of26
10
Focused Free Write (Pass the Pen)
• Describe the life cycle of our sun from life to death.
09000 2 87654321510 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
09000 1 87654321500 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
Ppass the paper
09000 2 87654321510 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
09000 1 87654321500 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
Ppass the paper
09000 2 87654321510 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
09000 1 87654321500 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
Ppass the paper
09000 2 87654321510 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
09000 1 87654321500 04 98765432103 9876543210987654321021 987654321098765432100Hours Minutes Seconds
Insert Text Here
Ptime is up
We are learning to: explain that universe has billions of galaxies and are classified by shape
We are looking for: shapes of galaxies• Spiral- mix of old and new stars• Elliptical- more developed galaxies with
older stars• Irregular-newer galaxies with newer stars
99
Galaxies
• A galaxy is a collection of millions or billions of stars.
• Galaxies are grouped in clusters.
• The Milky Way is a spiral galaxy (our galaxy).
• Types of Galaxies (by shape):– Spiral galaxies (blue
stars).– Elliptical galaxies (red
stars).– Irregular galaxies.
100
Quasars
• Quasars are the most distant and most radiant objects in the universe (center of distant galaxies).
101
Origin of the Universe
• The universe is everything in space.
• The Big Bang Theory states that the universe began with a gigantic explosion 10 to 20 billion years ago.
• Proof of the theory is the red shift of stars showing the universe is expanding.
102
Future of the Universe
• The universe will continue to expand (Hubble).
• The expansion of the universe will gradually slow down, and the universe will approach a limit in size.
• The universe will stop expanding and start to fall back in on itself.
By what are galaxies classified?
Color
Tempera
ture Size
Shape
0%
92%
8%0%
a) Colorb) Temperaturec) Sized) Shape
What type of galaxy is illustrated in the following picture?
Irreg
ular
Spiral
Elliptic
al
I hav
e no id
ea.. I
need..
.
0% 0%0%
100%
a) Irregularb) Spiralc) Ellipticald) I have no idea.. I
need help!
What type of galaxies contain older stars?
Elliptic
al
Irreg
ular
Barred
shap
e sp
iral
88%
8%0%4%
a) Ellipticalb) Irregularc) Barred shaped) spiral
Type of Galaxy Elliptical
Shape of Galaxy
Spiral Irregular
(Draw Diagram)
Types of stars