Transcript ES1.Powerpoint.SolarSystem es1.powerpoint.solarsystem

Tuesday 4-9-13
• Do Now: What are the
biggest and smallest planets?
• I can explain the phases of
the moon.
Mercury-Venus-Earth-Mars-JupiterSaturn-Uranus-Neptune
• Mercury -58,000,000 km – 0.4 AU
• Venus – 108,000,000 km- .7 AU
• Earth – 150,000,000 km – 1.0 AU
• Mars – 227,000,000 – 1.5 AU
• Jupiter – 778,000,000 – 5.2 AU
• Saturn – 1,429,000,000 – 9.5
• Uranus – 2,869,000 000 – 19
• Neptune 4505,000,000 – 30 AU
Our Solar System
Our solar system is
made up of:
• Sun
• Eight planets (+moons)
• Asteroids, Comets, Plutoids
Inner Planets
The inner four rocky planets at
the center of the solar system
are:
• Mercury
• Venus
• Earth
• Mars
Mercury
• Planet nearest the sun
• Covered with craters
• Has no moons or rings
• About size of Earth’s moon
Venus
• Sister planet to Earth
• Has no moons or rings
• Hot, thick atmosphere
Earth
• Third planet from sun
• Only planet known to have life and
liquid water
• Atmosphere composed of composed
of Nitrogen (78%), Oxygen (21%),
and other gases (1%).
Mars
• Fourth planet from sun
• Appears as bright reddish color in the
night sky
• Surface features volcanoes and huge
dust storms
Outer Planets
The outer planets
composed of gas are :
• Jupiter
• Saturn
• Uranus
• Neptune
Jupiter
• Largest planet in solar system
• Brightest planet in sky
• Giant red spot
Saturn
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6th planet from sun
Beautiful set of rings
Largest moon, Titan,
Voyager explored Saturn
and its rings.
Uranus
• 7th planet from sun
• Covered with clouds
• Uranus sits on its side with
the north and south poles
sticking out the sides.
Neptune
• 8th planet from sun
• Triton largest moon
• Great Dark Spot thought
to be a hole, similar to the
hole in the ozone layer on
Earth
Outermost Planet?
• Pluto
–Mostly ice
–Smaller than Moon.
• Never visited by
spacecraft
• Orbits very slowly
• Moon, Charon, is very
close to Pluto and
about the same size
• 2006-”plutoid”
Asteroids
• Between Mars and
Jupiter
• 100,000 rocky bodies
• Left over from the
beginning of the solar
system?
• Largest asteroids have
been given names
Comets
• Eccentric orbit around sun
• Central mass covered in ice
• Trails icy dust
Hailey’s Comet
Asteroid belt
Kuiper belt
• Trillions of objects
• 30-50 AU from sun
• Icy objects
• Pluto is a part
Kuiper belt
Oort cloud
• 50-100,000 AU from the sun?
• 2 trillion comets
• Small icy bodies
• Travel past the Sun
• Give off gas and dust as they
pass by
Oort Cloud
Milky way
• 120,00 light years across
• 12,000 light year bulge in middle
• 200-400 billion stars
• 90% dark matter
Milky Way
Interactive:
http://workshop.chromeexperiments.com/stars/
Our universe
Mason MS is in the
Virgo Supercluster
Gravity-Holding it all together
•What happens if the mass of the center
object increases or decreases?
•What if the distance of the orbiting
object increases or decreases?
Phases of the moon
Phases of the moon
Lunar and solar eclipse
Lunar
Solar
Making planets: Q.#4
Must have diagrams complete
• Use the balloon as a scale model
for the sun (30 cm)
• Calculate the scaled size of all
the planets and record.
• Use play-dough to make the
planets to scale
• Answer: How many cm from
Earth to sun?
Doing the math
• 30 cm = 1,390,000 km
• 1cm = __________km
Tomorrow
Phases of the moon
Exit
1. Write the LT in your own
words.
2. What was the most
important thing you learned
today?
3. What are still the most
unsure about?