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Earth and Space Science

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Presentation on theme: "Earth and Space Science"— Presentation transcript:

1 Earth and Space Science
the scientific study of geology, oceanography, meteorology, environmental science and astronomy View of Earth from the International Space Station.

2 Earth and Space Science
Earth is generally thought of being made of four “spheres”: Geology - Lithosphere the hard outer crust (rocks) which covers 30% of our planet two types: a. continental crust (rock type granite - old) b. oceanic crust (rock type basalt - young) Mountains in Northern Canada.

3 Earth and Space Science
Oceanography - Hydrosphere the combined volumes of water on Earth (i.e. Oceans, lakes, rivers, glaciers, groundwater) 70% of Earth’s surface is covered by water (of which 97% is salt and only 3% freshwater) Iceberg off the coast of Antarctica.


5 Earth and Space Science
Meteorology - Atmosphere the layer of gasses which surround Earth (i.e. air) 99% of air is made up of only two elements (79% nitrogen and 20% oxygen) other gasses include argon 0.9% and carbon dioxide 0.03% Weather is the atmospheric conditions in a particular location over a short period of time. Climate is the average weather conditions in a region over a long period of time. View over Arizona desert at sunset.

6 The Atmosphere

7 Earth and Space Science
Environmental Science - Biosphere the global community of living organisms and their environment life has been found ranging from 41 km above Earth’s surface to a depth of 5 km into Earth’s crust Rainforest of South America.

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