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Earth Features and Changes!
Mostly under the category of Earth Science
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Earth Science Earth science is a catch all term for the sciences related to the study of the Earth.
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Earth Science There are four subjects in earth sciences Geography
The study of the Earth and its lands and features
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Earth Science Geology The study of the structure, composition, and history of Earth.
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Earth Science Geophysics
The study of the Earth by quantitative physical methods.
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Earth Science Geodetics.
The science that works with the measurements of the Earth.
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Earth Science The basic four branches of earth science are
Geology - study of the earth Meteorology - study of the atmosphere, weather and climate Oceanography - study of the oceans Astronomy - study of the universe
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Earth Science We are not going to study astronomy in this unit.
We will mostly be looking at Geology
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The Main Parts of the Earth
The Lithosphere The solid part of the Earth. Sphere - round 3d object litho - means “stone” All the Continents and the land under the seas.
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The Main Parts of the Earth
The Hydrosphere All the liquid water and ice on the Earth. hydro - means “water” About 70% of the planet is covered in ocean 326,000,000,000,000,000,000 gallons, or about ( 1,260,000,000,000,000,000,000 liters) Salt water makes up about 97% of the Earths water
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The Main Parts of the Earth
About 2 percent of the planet's water is fresh, but 1.6 percent of the planet's water is frozen in the polar ice caps and glaciers. Another percent is found underground in aquifers and wells. Only about percent of the planet's total water supply is found in lakes and rivers.
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The Main Parts of the Earth
The rest of the water on the planet is in the air as clouds and water vapor.
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The Main Parts of the Earth
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The Main Parts of the Earth
The Atmosphere The envelope of gases surrounding the Earth. Nitrogen and oxygen make up most of our atmosphere. Candle Demo Balloon Balance Crushing Bottle
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The Main Parts of the Earth
The Biosphere The biosphere includes any place that life (of any kind) can exist on Earth.
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The Structure of the Earth
The Earth is not quite round. It is slightly squashed from pole to pole. The Earth is about km in diameter.
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The Structure of the Earth
The Earth has three basic layers. The Crust Outer layer (where we live) it is around 5-70 km thick. The Mantle Hot, slow flowing rock! It is about 2900km thick. The Core Innermost region Divided into a inner core (solid) and a outer core (molten nickel-iron) Made of mostly iron, solid in the center, liquid all around. It is about 3550km thick
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The Structure of the Earth
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Components of the Lithosphere
Elements Collection of atoms of the same type. Simplest form of matter that: cannot be formed from simpler substances. cannot decompose into simpler substances. Organized on the Periodic Table of the Elements: Periodic Table contains more than 115 elements: 92 elements found naturally.
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Components of the Lithosphere
Minerals Naturally occurring, inorganic, solid substances. Formed when groups of atoms bond together. Characterized by composition and arrangement of atoms. Classified by physical properties (composition): crystal habit, hardness, color, cleavage, luster Classified by composition and crystal structure (arrangement of atoms): native elements, silicates, carbonates, halides, oxides, sulfides, sulfates
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Components of the Lithosphere
Rocks Collections of minerals. Classified into three natural types igneous metamorphic sedimentary distinguished by rock structure and mineral composition.
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The Main Parts of the Earth
Africa, Antarctica, Asia, Australia, Europe, North America, South America, the equator, the North Pole, and the South Pole
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, South America, the equator, the North Pole, and the South Pole Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, South America, the equator, the North Pole, and the South Pole ? Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, the equator, the North Pole, and the South Pole South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, the equator, the North Pole, and the South Pole ? South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, the North Pole, and the South Pole Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, North America, the North Pole, and the South Pole ? Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, the North Pole, and the South Pole North America Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, the North Pole, and the South Pole North America ? Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, and the South Pole North America North Pole Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, Europe, and the South Pole North America North Pole ? Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, and the South Pole North America North Pole Europe Equator South America Africa
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The Main Parts of the Earth
Antarctica, Asia, Australia, and the South Pole North America North Pole Europe ? Equator South America Africa
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The Main Parts of the Earth
Antarctica, Australia, and the South Pole North America North Pole Europe Asia Equator South America Africa
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The Main Parts of the Earth
Antarctica, Australia, and the South Pole North America North Pole Europe Asia Equator ? South America Africa
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The Main Parts of the Earth
Antarctica, and the South Pole North America North Pole Europe Asia Equator Australia South America Africa
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The Main Parts of the Earth
Antarctica, and the South Pole North America North Pole Europe Asia Equator Australia South America ? Africa
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The Main Parts of the Earth
the South Pole North America North Pole Europe Asia Equator Australia South America Antarctica Africa
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The Main Parts of the Earth
the South Pole North America North Pole Europe Asia Equator Australia South America Antarctica ? Africa
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The Main Parts of the Earth
North America North Pole Europe Asia Equator Australia South America Antarctica South Pole Africa
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The Main Parts of the Earth
W Longitudes E Longitudes N Latitudes N Latitudes S Latitudes S Latitudes E Longitudes W Longitudes
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The Main Parts of the Earth
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