1. What is Earth’s mantle? The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density. The interior of the Earth‚ similar to the other terrestrial planets‚ is chemically divided into layers. The mantle is a layer between the crust and the outer core. ... 2. What elements make up the Earth’s mantle? Magnesium‚ silicon‚ iron and oxygen‚ aluminum‚ silicon‚ calcium‚ sodium and potassium 3. Describe the “big splash” theory of the Moon’s origin? The
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days of microbiology in the 19th century‚ culture on agar plates has been a central technique for the study of bacteria. This practical is designed to introduce students to the basic techniques required to manipulate bacteria. Students will gain experience with the streak plate procedure‚ used to isolate pure colonies of bacteria‚ and viable plate count methods. The latter involves serial dilution and spread plating of bacteria on agar plates. Materials required per pair • One 10 ml liquid culture
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supported by experimental or factual evidence but has not been conclusively proved * Theories explain the data in a concise manner * Example: E = mc2 theory of relativity | Natural Law | * Never ever false | Alfred Wegener | * “Father of Plate Tectonics‚” German meteorologist * Introduced his hypothesis in “Origins of Continents and Oceans” in 1915 * Suggested that a super continent called Pangaea (all lands) existed during most of the Paleozoic * 200 Ma (Mz) Pangaea began breaking
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Plate Tectonics The forces that shape the earth begin beneath the lithosphere. Rock in the asthenosphere is hot enough to flow slowly. Heated rock rises‚ moves up toward the lithosphere‚ cools and circulates downward. Riding above this circulation system are the tectonic plates‚ enormous moving pieces of the earth’s lithosphere. [pic] Plate Movement Tectonic Plates move in four different ways. When tectonic plates come into contact‚ changes on the earth’s surface occur. 1. Diveregnt Boundary-
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What is Earth’s mantle? The Earth’s mantle is a roughly 1‚800 mile (2‚900 km) thick shell of compressed and heated rock‚ beginning below the Earth’s crust (lithosphere)‚ which extends 3.1 miles (5 km) below the ocean floor and 19 to 31 miles (30 to 50 km) below the continents. What elements make up the Earth’s mantle? magnesium‚ silicon‚ iron‚ and oxygen Describe the “big splash” theory of the Moon’s origin? The currently accepted hypothesis for the Moon’s origin--which is supported by chemical
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Plate tectonics help us to explain the process of folding. According to the theory of plate tectonics‚ the earth’s crust is broken up into sections called plates. These plates float on the semi-molten mantle. Thermal convection currents in the mantle drag these plates in different directions resulting in tectonic activity. Folding occurs when rock layers that were originally horizontal are bent into a series of wave-like folds. As a result of this collision of the earth’s tectonic plates‚ the
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FULL SET OF NOTES ON TECHTONICS 2012 AQA GEOGRAPHY FULL SET OF NOTES ON TECHTONICS 2012 AQA GEOGRAPHY TECHTONICS | TOPICS | UNDERSTOOD/COVERED? | PLATE MOVEMENT | | SEISMICITY | | VULCANICITY | | These notes were copied from an AQA textbook. They contain EVERYTHING you need to know for the exam for the tectonics section. You WILL however‚ need to use your own case studies as these are not included. You will need 2 case studies for volcanoes‚ and 2 case studies for earthquakes
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“The extent to which tectonic processes represent hazards depends on when and where they are experienced. Discuss” Throughout this essay I will be discussing my view on the extent to which I think tectonic processes represent hazards depending on when and where they are experienced. My view is that the hazards caused by tectonic processes such as volcanoes and earthquakes are very much likely to have a bigger impact socially‚ environmentally and economically depending on where they had occurred
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Agar and Media Preparation— Agar plates containing King’s B Agar were often used throughout the experiment to support growth of Pseduomonas fluorescens. A recipe was used that included a mixture of 10g Proteose Peptone #3‚ 1.5g Potassium Phosphate Dibasic (K2HPO4)‚ 30ml 50% Glycerol‚ ~965ml water and 20g agar. The mixture‚ post- autoclave‚ was left to cool and 5ml 1M Magnesium Sulfate (MgSO4) was added and created about 40 plates. King’s B Medium was made using the same procedure as the King’s B
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Earthquakes and Logarithms Earthquakes are responsible for a wast majority of natural hazards on our planet. This natural geological phenomena are almost impossible to predict‚ and they occur usually in zones of the planet that are prone to movement in the uppermost crust of the earth. Certain areas are more likely to experience earthquakes‚ and also the aftermath of the earthquakes can be just as destructive or sometimes even more. Different methods of measuring earthquakes have been implemented
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