land) Biosphere (all living things including plants and animals Atmosphere (gases surrounding earth) Hydrosphere (water anywhere on planet in any other sphere) 2. What is the structure of the earth? Crust (Lithosphere) Upper mantle (asthenosphere) Lower mantle Outer core Inner core You need to know how the temperature and density of each layer changes (see book notes) 3. What causes the Earth’s crust to move? Convection currents – heat from the Earth’s core causes magma to
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zones Spreading zones between continental plates When the plates move apart‚ molten material from under the crust moves up to replace the separating crust‚ resulting in sea floor spreading. Oceans and continents form plates which move over the asthenosphere Plate tectonics: study of movement of crustal plates (6) Fossils in common on Gondwanan continents‚ including Glossopteris and Gangamopteris flora‚ and marsupials Fossil: trace or remains of past lie Mature seeds of glossopteris are too big
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MEN BEHIND SCIENTIFIC INVESTIGATION & DISCOVERIES I- Introduction “He had in fact most of the qualities that make a great scientist: an innate curiosity and perceptiveness regarding natural phenomena‚ insight into the heart of a problem‚ technical ingenuity‚ persistence in seeing a job through and that physical and mental toughness that is essential to the top-class investigator.” - Leonard Colebrook (1883 - 1967) Scientists are known by their discoveries‚ inventories‚ theories discovered
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Continental Drift and Plate Tectonics Theory (Part 1a) Introduction: The Beginning of the “Continental Drift Theory” In the middle of the eighteenth century‚ James Hutton proposed a theory‚ uniformitarianism; “the present is the key to the past”. It held that processes such as geologic forces- gradual and catastrophic-occurring in the present were the same that operated in the past. (Matt Rosenberg‚ 2004) This theory coincides with the theory of Continental Drift that was first proposed by Abraham
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Lines of Latitude are parallel to the equator. True Lines of longitude are parallel to the polar axis. True What is the approximate diameter of Earth at the equator? About 8‚000 miles “Time” can be used to calculate latitude. False Why is it difficult to produce a 2-dimensional map of the earth that will faithfully reproduce to entire earth surface without distortion? There is no way to produce such a map because of the shape of the earth. According to Oceanography‚ Which of the following was the
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Question 1: a. i. Visit each of the three different museum rooms( ‘photos‚ maps and data’‚ ‘objects’ and ‘pictures’) and choose 5 items that could be used to explore the theme ‘Ways of life in the Artic’. You must select at least one item from each room. List the 5 items that you have chosen The 5 items that I have chosen from the ‘ museum cabinet’ are as follow : * A metal Ulu( knife) * A modern map of the Artic * A painting of Cape Liddon‚ Devon Island * A wooden doll
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Definitions‚ Review Questions‚ Critical Thinking Chapter 1: Natural Hazards Geologic cycle: A group of interrelated sequences of Earth processes known as the hydrologic‚ rock‚ techtonic‚ biogeochemical cycles. Mitigation: The avoidance of‚ lessening‚ or compensation for anticipated harmful effects of an action‚ especially with respect to the natural environment. Land-use planning: The preparation of an overall master plan for future development of an area; the plan may recommend zoning restrictions
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5.3.3 ELECTRICAL ENERGY a) Design‚ construct and draw circuits containing a number of components- (globe‚ closed switch‚ open switch‚ ammeter‚ voltmeter‚ battery or transformer) What is electricity? A form of energy resulting from the existence of charged particles either statically as an accumulation of charge or dynamically as a current. What is a conductor? Materials that permit electrons to flow freely from atom to atom and molecule to molecule. An object made of conducting material will
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N =1 ’I=».’-\1. :--=’=-’-e= . long and complex history. FOCUS om CONCEPTS How old is Earth? What are Earth’s four major “spheres”? a What is the theory of plate tectonics? Why should Earth be thought of as a system? ~ he spectacular eruption of a volcano‚ the magnificent scenery of a rocky coast‚ and the destruction created by a hurricane are all subjects for the Earth scientist. The study of Earth science deals with many fascinating and practical questions about our environment. Vllhat
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Name ________________________ Lab 1. Volcanic Hazards VOLCANOES INTRODUCTION Few things excite the imagination as much as a volcanic eruption‚ one of nature’s magnificent spectacles‚ which can result in devastating consequences. The very word “volcano” brings to mind thunderous explosions‚ rivers of fiery orange lava‚ and images of smoking destruction. The actual capacity for destruction is not overrated -- volcanic eruptions are one of the most devastating of all geologic hazards. There
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