1. The Earth System

2. The Earth System
System: an organized group of parts that work together to form a whole.
The Earth system has four major parts:
Atmosphere
Hydrosphere
Biosphere
Geosphere
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3. Atmosphere
The mixture of gases and particles that surrounds and protects the surface of Earth.
The mixture of gases:
Nitrogen (78%)
Oxygen (21%)
Carbon dioxide, water vapor, and other gases (1%)
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4. Hydrosphere Inside Made up of all the water on Earth:
Oceans, lakes, and glaciers
Rivers, streams, and underground
Water covers 75% of the Earth’s surface
3% is fresh water
70% in glaciers and polar ice
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5. Biosphere Inside All life on Earth: in the air on the land
in the waters
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6. Geosphere Inside All the features on Earth’s surface: Continents
Islands
Sea floor
Everything below the surface
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7. The Earth's Geosphere Inside
crust: thin, rocky shell that includes continents and sea floor
mantle: thick layer of hot rock
outer core: molten metal, mostly iron
inner core: solid metal, mostly iron
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8. The Earth System
The atmosphere, hydrosphere, biosphere, and geosphere work together to form one large system called Earth.
geosphere
biosphere
hydrosphere
atmosphere
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9. Earth System Foldable
Draw and color the Earth on the front of your foldable.
Read section 1.1 [pages 9-14] and add additional notes to your foldable.