Planet Earth: The Big Picture: “4 spheres”

Planet Earth:

The Earth’s Spheres: Atmosphere:

The Earth’s Spheres: Atmosphere: A mass of gas surrounding a planet or other celestial body and held in place by gravity.

The Earth’s Spheres: Atmosphere: A mass of gas surrounding a planet or other celestial body and held in place by gravity. Mostly Nitrogen (N) and Oxygen (O)

Composition of Atmosphere Nitrogen - 78% Oxygen - 21% Water Vapor – 0 to 4% Carbon Dioxide -.037% Other gases make up the rest

The Earth’s Spheres: Atmosphere: A mass of gas surrounding a planet or other celestial body and held in place by gravity. Mostly Nitrogen (N) and Oxygen (O) Hydrosphere:

The Earth’s Spheres: Atmosphere: A mass of gas surrounding a planet or other celestial body and held in place by gravity. Mostly Nitrogen (N) and Oxygen (O) Hydrosphere: All water located on the Earth, in the Earth, and in the Earth’s atmosphere.

The Earth’s Spheres: Atmosphere: A mass of gas surrounding a planet or other celestial body and held in place by gravity. Mostly Nitrogen (N) and Oxygen (O) Hydrosphere: All water located on the Earth, in the Earth, and in the Earth’s atmosphere. The water cycle.

The Earth’s Spheres: Lithosphere:

The Earth’s Spheres: Lithosphere: The land on Earth. The upper layer of solid Earth.

The Earth’s Spheres: Lithosphere: The land on Earth. The upper layer of solid Earth. Includes ocean bedrock and lake and river beds.

The Earth’s Spheres: Lithosphere: The land on Earth. The upper layer of solid Earth. Includes ocean bedrock and lake and river beds. Biosphere:

The Earth’s Spheres: Lithosphere: The land on Earth. The upper layer of solid Earth. Includes ocean bedrock, lake and river beds. Biosphere: All forms of life on our planet.

Interconnectedness: Lithosphere Hydrosphere Biosphere Atmosphere Carbon Dioxide Oxygen

Biosphere: What makes up the biosphere? Bacteria Protists Fungi Plants Animals Look Familiar?

Biosphere: Where would you find the biosphere? In the lithosphere. (worms, plant roots, etc) In the atmosphere. (birds, trees, etc) In the hydrosphere. (fish, water plants, etc)

Hydrosphere: Where would you find the hydrosphere? Oceans Marshes Freshwater (lakes, rivers, springs, ponds, puddles, etc.) Glaciers and polar caps as frozen hydrosphere Ground water (under part of the lithosphere) Atmospheric water (clouds, water vapor, all precipitation)

Hydrosphere: How does water move on our planet? The water cycle

Layers of the Atmosphere Troposphere The troposphere starts at the Earth's surface and extends to about 9 miles high. Almost all weather is in this region. Temperature decreases with height. Stratosphere Air temperature increases with height due to the sunlight absorption from the Ozone Layer. (average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere.)

Atmosphere Mesosphere Air thin, pressure low, very cold near top of layer. (the gases in the mesosphere are still thick enough to slow down meteors hurtling into the atmosphere, where they burn up, leaving fiery trails in the night sky. ) Thermosphere “Hot Layer” – oxygen molecules absorb energy from solar Rays warming the air. Very few atoms and molecules in this region.

Atmosphere Exosphere Very high up, the Earth's atmosphere becomes very thin. The region where atoms and molecules escape into space.

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