Study Hall: Working Quietly

In assigned seats.

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

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

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)

ASTEROIDS

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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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

HALEYS COMET

Explanation of Halley’s Comet

http://www.youtube.com/watch?v=oBq3-ZqW4Ac

Halley’s Comet

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Meteoroid: Large pieces broken off from an asteroid or comet

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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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Meteorite: A meteoroid that does not burn up in the Earth’s atmosphere

It lands and crashes onto the Earth.

Barringer Crater created 50,000 years ago

Hole created when massive meteorite struck Arizona

Meteorite Hitting Earth

http://www.youtube.com/watch?v=dpmXyJrs7iU

VIDEO IN RUSSIA

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

How can Earth Sustain Life?3 main reasons….

Think about this….

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

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EarthGravity’s effect on Planets Atmosphere

Discovery Ed. Video

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)

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http://www.youtube.com/watch?v=WaikvaAw2nk

Video on layers of the Atmosphere

Picture of the atmosphere

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

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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

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

Solar System Worksheet

Complete this if not done earlier

Add distance (AU) for each planet

Review Solar System Worksheet

Follow along as I project the information onto the whiteboard

“Why Mars Died and Earth Lived”

http://www.youtube.com/watch?v=oC31pqk9sak

Video