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Earth Sciences

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Science Review of Mountain Formation
Science Review of Mountain Formation 150 150 Deborah

Overview Mountains form as a result of intense tectonic forces. Mountain chains such as the Andes and the Himalayas rise from the collisions of continental plates, as rocks are folded,…

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Science Review of the Ocean Floor
Science Review of the Ocean Floor 150 150 Deborah

Overview Although much of the area of the ocean floor is unexplored, scientists have been able to find features that are common to all areas. The landforms that make up…

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Science Review of Rainbows
Science Review of Rainbows 150 150 Deborah

Overview Rainbows, glories, fogbows, and glassbows are all related phenomena caused by the nature of light. Each color is created by light hitting raindrops or beads of glass. They have…

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Biology Review of Combating Global Warming
Biology Review of Combating Global Warming 150 150 Deborah

Overview Global warming refers to the rise in the average temperature of the climate system of the Earth. Some of the energy has resulted in the increase in ocean temperature.…

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Biology Review of the Ozone Hole and Global Warming
Biology Review of the Ozone Hole and Global Warming 150 150 Deborah

Overview Human activity has affected the biosphere on Earth as the population has grown to over 7 billion. Some of the most troubling effects include changes to the ozone layer…

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Science Review of Volcanoes
Science Review of Volcanoes 150 150 Deborah

Overview Volcanoes on Earth are usually caused when hot lava, volcanic ash, and gases escape from chambers below the crust. Although many volcanic mountains have cones with craters, other types…

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Science Review of Earthquakes
Science Review of Earthquakes 150 150 Deborah

Overview Earthquakes are caused when energy is suddenly released in the earth’s crust, so that it shakes and trembles. Most are mild, but some are violent, resulting in massive devastation,…

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Science Review of Earthquakes, Volcanoes, and Plate Tectonics
Science Review of Earthquakes, Volcanoes, and Plate Tectonics 150 150 Deborah

  Overview The planet Earth is not a uniform, cold, solid ball. Scientists believe that as it condensed from the cloud surrounding the sun, it formed in many dynamic layers,…

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Science Review of the Formation and Structure of the Earth
Science Review of the Formation and Structure of the Earth 150 150 Deborah

Overview The planet Earth was once part of the cloud surrounding the sun. Scientists believe that as it condensed and cooled, it formed into layers. The crust is a rocky…

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Science Review of Minerals
Science Review of Minerals 150 150 Deborah

Overview Minerals make up rocks. They are natural rather than synthetic, inorganic, and solid. Minerals have a distinct crystalline structure and chemical composition. Types of Elements The most common elements…

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