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

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The atmosphere is an envelope of gas surrounding the planet.

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CAREFULLY READ ITEMS 1-4 BELOW (SCROLL DOWN) IF YOU WOULD LIKE TO GET FULL CREDIT:

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CAREFULLY READ ITEMS 1-4 BELOW (SCROLL DOWN) IF YOU WOULD LIKE TO GET FULL CREDIT:

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1. MAKE A COPY OF THIS DOCUMENT INCLUDING POSTS BY A. Selecting Remake (top right corner)
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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How is man influencing the earth's environment?

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How is man influencing the earth's environment?

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(Tip - pause screen when list comes up and type below)

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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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(Tip - pause screen when graphic comes up and type below)

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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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Earth has liquid water on it's surface, something that the other three terrestial planets don't have.

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Core made up of two parts, inner and outer core, inner core is solid, and is made of iron and nickel, which sank down to the core since they're heavy elements. Can stay solid because of the extremely high pressure. Outer core is also iron and nickel, but it's liquid, which means it can flow.

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Like very thick hot plastic, behaves like a solid, but can still flow over very long periods of time.

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Solid layer of rock, less dense then mantle, so it can float atop it. Two types of crust, oceanic (5km thick) and continental (30-50 km thick).

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Lines of volcanos are thought to be from a plume of hotter material "punching" it's way through the middle of a continental plate, when the plate moves, a linear chain of volcanoes is created over millions of years.

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Earth's core is so hot because of the residual heat of Earth's formation. As things like rock accumulated to form protoearth, their collisions heated them up. The earth's mass causes gravity to squeeze in on itself, adding more heat to the core. Also, elements like uranium that are deep inside Earth add heat in the form of radioactive decay. And lastly, dense materials such as iron and nickel sinking to the center of earth, providing heat in the form of friction.

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The outer core is formed from liquid metal that can conduct electricity. The liquid convects and form magnetic fields, and the earth's rotation organizes them into the magnetic poles.

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Magnetic loops from the poles play important role. They deflect charged particles from solar wind, and can trap some of them too. Protects earth's atm

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The line that separates the atmosphere and space is set at 100 km up, and is known as the Karman Line.

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78% nitrogen, 21%oxygen, 1%argon, trace gases, and water vapor.

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Atmosphere is warmer at the bottom, which creates convection and rising currents of

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Located at 25 kilometers, ozone can absorb solar ultraviolet light.

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Caused when the magnetic field directs solar wind down and makes the gases in our atmosphere glow different colors.

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Atmosphere exerts a kilogram per square centimeter of pressure on the earth.

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Continental crust higher than oceanic crust, so water flows down to fill the oceanic crust. 70% of the earth's surface is water. Water comes from 2 sources, creation of the earth, and asteroid impacts.

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We need carbon dioxide so that earth won't become completely ice, but too much would make the earth too hot. Right now we are adding a bunch of carbon dioxide to our atmosphere. Our glaciers are melting, and water is becoming more acidic. which is why we need to reduce our carbon footprint.