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The geosphere includes a hot and mostly metallic inner core; a mantle of hot, soft, solid rock; and a crust of rock, soil, and sediments.

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The atmosphere is an envelope of gas surrounding the planet.

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The hydrosphere is the ice, water vapor, and liquid water in the atmosphere, ocean, lakes, streams, soils and groundwater.

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The biosphere is defined by the presence of living organisms of any type that can be found in many parts of the geosphere, hydrosphere and atmosphere. Humans are part of the biosphere and our activities have important impacts on all of the Earth's systems.

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1. MAKE A COPY OF THIS DOCUMENT INCLUDING POSTS BY 

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1. MAKE A COPY OF THIS DOCUMENT INCLUDING POSTS BY 

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A. Selecting Remake (above right)
B. Be sure to insert your name under title and click both boxes (copy design, copy posts) so that you get all the headings.

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-Leftover heat from formation
-Gravity's squeeze
-Decaying Uranium
-Friction

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(Tip - pause screen when graphic comes up and type below)
-78% nitrogen
-21% oxygen
-1% Argon
- Trace Gases and water vapor

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How much of the earth is covered by water

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How much of the earth is covered by water

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Earth's surface is about 70% covered in water.

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How is man influencing the earth's environment?

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How is man influencing the earth's environment?

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We've added a lot of gas to our atmosphere, which traps more heat and makes Earth hotter. This results in glaciers melting in Antarctica and Greenland. Sea levels go up, and some extra CO2 in the air absorbed by the oceans, which acidifies them.

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2. Take notes (select the + on the video while watching on partner's computer and...

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2. Take notes (select the + on the video while watching on partner's computer and...

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...then be sure to answer the note prompts I provided already.  (The colored descriptions I added to just be helpful to you.)

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A. Select "SHARE" above and then 'share/export/embed' tab.
B. Copy 'link' and inset the link into the words "Our Earth's Systems Notes" on your 3rd Rock: Mantle Cruising Hyperdoc

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4. If interested in a few bonus points - add in at least one picture to at least one note under each column heading.

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4. If interested in a few bonus points - add in at least one picture to at least one note under each column heading.

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Located in the very center of Earth. Solid, made mostly of iron and nickle, since these elements are heavy and sank to the "bottom" when it was formed. It is about 12 hundred kilometers in radius (10% the radius of Earth). Pressure high enough to remain solid.

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Liquid, also composed mostly of iron and nickel. It can flow, and is 2200 kilometers thick. Pressure not high enough to keep iron solid.

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The layer above the core, 2900 kilometers thick. Substance is weird, very like thick hot plastic. It can flow over really long periods of time.

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A solid layer of rock, on top of the mantle. There are 2 types of crust:
Oceanic crust- 5 kilometers thick
Continental Crust- 30-50 kilometers thick
Not a solid piece- broken up into huge plates, which can move due to the flow of the rock in the mantle

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The layer of gas above the crust.
Not solid, so no distinct point where atmosphere ends.

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Since the temperature is warmest at the bottom of the atmosphere, water vapor rises, forming clouds, then fall back down when it gets cool enough.

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The atmosphere protects us from solar wind particles. To be more specific, the magnetic field does. It also channels some of the particles down into the atmosphere, where it slams into molecules about 150 kilometers up, emitting different colored light. The glow is called the aurora.

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Exerts a pressure on the surface of the Earth of about a kilogram per square centimeter. However, we don't feel it because it pushes from all sides of our body, and also because our body have an internal pressure that balances pressure outside out.

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Most believe water came from the Earth itself and from meteors and asteroids that struck Earth.
"The eact proportion of locally sourced versus extraterrestrial water is still a topic of argument among scientists."

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Makes up about 0.04% of the lower atmosphere, and is a trace gas. However, it is crucial to have, since it traps infrared light that would otherwise go into space, therefore keeping our planet warm. This is known as the greenhouse effect.

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During the Industrial Revolution, lots of gases where thrown into the air. This increased the average temperature of Earth, and is known as global warming. This can affect the plants and animals that live (ex. sea levels rising, less space to live, more competition).