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Study Hall: Working Quietly
In assigned seats.
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Unscramble these words below?
O T M C E 1. I am known as a ‘dirty snowball’
R A T E H 2. I am the 3rd planet from the sun
L T O P U 3. I am now considered a dwarf planet
N U A T R T O S A 4. I like my space.
I R A N M A O O L S T C T U I N
5. Earth’s average distance from the sun
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How did you do? Volunteers….
COMET 1. I am known as a ‘dirty snowball’
EARTH 2. I am the 3rd planet from the sun
PLUTO 3. I am now considered a dwarf planet
ASTRONAUT 4. I like my space.
ASTRONOMICAL UNIT
5. Earth’s average distance from the sun
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WRITE IN NOTEBOOK
Asteroids: chunks of rock left over from when the planets formed
Largest of the solar system bodies
Most common in the ASTEROID BELT (located between the orbits of Mars and Jupiter)
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ASTEROIDS
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Discovery Channel Video of impact simulation
http://www.youtube.com/watch?v=PENT_hnyO-o
What if an Asteroid struck the Earth?
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WRITE IN NOTEBOOK
Comets: asteroid-like objects covered in dust, ice, gases, and metals that develop a fuzzy, cloud-like shell called a coma when they orbit close to the sun,
the ice instantly melts, creating a long, visible tail (a dirty snowball)
Form far away from the Sun
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HALEYS COMET
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Explanation of Halley’s Comet
http://www.youtube.com/watch?v=oBq3-ZqW4Ac
Halley’s Comet
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WRITE IN NOTEBOOK
Meteoroid: Large pieces broken off from an asteroid or comet
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WRITE IN NOTEBOOK
Meteor: A meteoroid that burns up in the Earth’s atmosphere.
Creates a flash of light = ‘shooting stars’
Smallest of the solar system bodies
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WRITE IN NOTEBOOK
Meteorite: A meteoroid that does not burn up in the Earth’s atmosphere
It lands and crashes onto the Earth.
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Barringer Crater created 50,000 years ago
Hole created when massive meteorite struck Arizona
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Meteorite Hitting Earth
http://www.youtube.com/watch?v=dpmXyJrs7iU
VIDEO IN RUSSIA
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Homework: “I am” Activity
Directions: 1.Each statement gives you a hint for which one it is.
2.The words can be used more than once.
3.Use your notes to help you fill in the blanks
Due Tuesday in class
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How can Earth Sustain Life?3 main reasons….
Think about this….
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1. Distance from the Sun Sun = major source of heat and light for
entire solar system Earth = formed in right location = just enough solar radiation = not too hot or too cold,
moderate temperatures
WRITE IN NOTEBOOK
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EarthGravity’s effect on Planets Atmosphere
Discovery Ed. Video
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2. Earth’s atmosphere Blanket of gases surrounding Earth Protects humans from harmful radiation It is breathable Made of: nitrogen (78 %), oxygen (21%), and 1 % inert gases (argon, carbon dioxide, water vapor)
WRITE IN NOTEBOOK
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http://www.youtube.com/watch?v=WaikvaAw2nk
Video on layers of the Atmosphere
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Picture of the atmosphere
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5 Atmospheric Layers: Troposphere: closest to the ground, where all
weather happens (clouds found here) Stratosphere: ozone layer, where airplanes fly Mesosphere: where meteors/rock fragments burn
up Thermosphere: where northern lights ‘Auroras’
occur Exosphere: where spacecraft/satellites orbit, upper
limit of Earth’s atmosphere
WRITE IN NOTEBOOK
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3. Earth contains liquid water
Only planet in solar system to contain liquid water
Liquid water is essential for life to exist If we were closer to the sun, our oceans would boil
away while if we were farther away, our oceans would freeze
WRITE IN NOTEBOOK
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1. Read the article – Class set2. Answer the questions in your
notebook with your table partner 3. Answers need to be written in
COMPLETE sentences for ANY credit.
Discovery Ed: READING ACTIVITY
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Solar System Worksheet
Complete this if not done earlier
Add distance (AU) for each planet
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Review Solar System Worksheet
Follow along as I project the information onto the whiteboard
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“Why Mars Died and Earth Lived”
http://www.youtube.com/watch?v=oC31pqk9sak
Video