Earth Science

Earth Science

Earth Science Chapter 1 What is Earth Science? It is the study of the Earth and the universe around it by observation and experimentation, which explain the natural events and phenomena. Studying Earth science is important because understanding earths past helps to understand our present and future use of resources. Careful observations by ancient cultures led to many modern understandings and tools Es el estudio de la Tierra y el

universo a su alrededor por la observacin y la experimentacin, que explican los acontecimientos y fenmenos naturales. Estudiar Ciencias de la Tierra es importante porque ms all de la comprensin de la tierra ayuda a entender nuestro uso presente y futuro de los recursos. Las observaciones cuidadosas de las culturas antiguas dieron lugar a muchas interpretaciones y herramientas modernas Ancient Observations China 780 BCE

Greece 200 BCE Began keeping records of earthquakes Kept records of rocks and minerals Comenz a llevar registros de los terremotos registros guardados de

rocas y minerales Mayan Track the movement of the Sun, Moon & planets; created accurate calendars Seguir el movimiento del Sol, la Luna y los planetas; calendarios precisos creados Is it all just about rocks? NoThere are many branches of Earth Science Geologists study the solid earth earthquakes, fossil fuel deposits & fossils Oceanographers study the oceans waves, tides, currents, ocean floor and

seafloor structures Meteorologists study the atmosphere, climates, and weather conditions using maps, satellite images and computer models Astronomy is the oldest branch of Earth Science, Astronomers study planets and stars, and other celestial bodies in the universe No ... Hay muchas ramas de las Ciencias de la Tierra Los gelogos estudian la tierra slida - terremotos, depsitos de combustibles fsiles y fsiles Los oceangrafos estudian los ocanos olas, mareas, corrientes, suelo marino y las estructuras del fondo marino Los meteorlogos estudian la atmsfera, los climas, y las condiciones meteorolgicas a travs de mapas, imgenes de satlite y modelos informticos La astronoma es la rama ms antigua de Ciencias de la Tierra, los planetas y las estrellas de estudio de los astrnomos, y otros cuerpos celestes en el universo Environmental Earth Science Study of humans and their interaction with the environment.

Combination of Earth, Biology, and Social Sciences Purpose: Understand Earths natural resources and solve issue that have come about due to human interaction with the environment. Estudio de los seres humanos y su interaccin con el medio ambiente. La combinacin de la Tierra, Biologa, y Ciencias Sociales Objetivo: Conocer los recursos naturales de la Tierra y resolver problema que han surgido debido a la interaccin humana con el medio ambiente. How long ago were the first scientific observations about Earth made? A. B. C. D. A few years ago

A few decades ago Hundreds of years ago Several thousands of years ago D. Several thousands of years ago The Earth Scientist most likely to study volcanos is ___________ A. B. C. D. Meteoroloigst Geologist Astronomer Oceanographer

B. Geologist The study of the origin of the solar system and the universe in general is _____ A. B. C. D. Geology Ecology Meteorology Astronomy D. Astronomy How is science and other disciplines

different? Science is used by artists, detectives, philosophers, and architects to solve problems, but scientists use science to understand and explain the natural world La ciencia es utilizada por artistas, detectives, filsofos y arquitectos para resolver los problemas, pero los cientficos usan la ciencia para entender y explicar el mundo natural Components of an experiment Observation & question Hypothesis Test Controlled experiment Independent and Dependent variables Constants Analyze data & measurements

Draw Conclusion Observacin y pregunta Hiptesis Prueba Experimento controlado Las variables independientes y dependientes constantes Analizar los datos y mediciones Llegar a la conclusion Accuracy vs Precision Accuracy: how close a measurement is to the true value of what is being measured Precision: The exactness of the

measurement Ex: A mass measured in milligrams is more precise than one measured in grams You can be precise if you continue to get the same or close to the same measurement, but not accurate if the tool used to measure the item is not calibrated correctly so you are getting the wrong measurement to start out. You can be accurate if you are getting around the same measurement but not precise if you do not get the exact measurement over and over Precisin: la proximidad de una medicin es el verdadero valor de lo que se est midiendo

Precisin: La exactitud de la medicin Ex: una masa medida en miligramos es ms precisa que una medida en gramos Puede ser preciso si se vuelve a obtener el mismo o cerca de la misma medicin, pero no precisa si la herramienta que se utiliza para medir el elemento no est calibrado correctamente - por lo que est recibiendo la medicin equivocada para empezar a cabo. Puede ser preciso si usted est recibiendo alrededor de la misma medicin, pero no precisa si no se obtiene la medicin exacta una y otra Can you pick it out? Are the targets Accurate, Precise, Both or Neither?

Not accurate not precise Precise not Accurate Accurate not Precise Accurate and Precise Theory, Law & Hypothesis Law: A logical relationship between two or more things that is based on a variety of facts and proven hypothesis. It is often a mathematical statement of how two or more quantities relate to each other. Does not tell why something happens, just states it does.

Theory: An explanation for why certain laws and facts exist that can be tested to determine its accuracy. Ley: Una relacin lgica entre dos o ms cosas que se basa en una variedad de hechos e hiptesis probada. A menudo es una declaracin matemtica de cmo dos o ms cantidades se relacionan entre s. No le dice qu algo ocurre, simplemente afirma que lo hace. Teora: Una explicacin de por qu ciertas leyes y hechos que existen puede ser analizada para determinar su exactitud. Hypothesis: A tentative statement such as if A happens then B must happen that can be tested b y direct experiment or observation. A proven hypothesis can be expressed as a law or a theory. A disproven hypothesis can sometimes be re-tested and found correct as measurements improve Hiptesis: Una declaracin provisional como "si ocurre A entonces B debe suceder 'que puede ser probado b

experimento directa y u observacin. Una hiptesis probada se puede expresar como una ley o una teora. Una hiptesis refutada a veces puede volver a probar y encontrar ms exactas mediciones aumentan Is it a Theory, Law or Hypothesis? A. For every action, there is an equal and opposite reaction Law Hypothesi B. If there is a full moon, then more crimes will occur s C. Acceleration due to gravity is 9.8 m/s/s Law D. The universe developed because swirling gas was pulled together by Theory gravity E. The sun will rise in the east and set in the west

Law And Finally. What is the variable being studied in this experiment? A.Plant size C. Amount of B.Seed number C.Amount of moisturemoisture D.Amount of light Using the table, what can you say about the relationship between each food and the mass of the mouse: A. The mixture-fed mouse gained the most mass

B. The corn-fed mouse gained less mass in week 1 C. The grain-fed mouse gained more mass in week 2 D. The rice-fed mouse gained the least A. mass The mixture-fed mouse gained the most mass

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