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Una sociedad en guerra - Tiempos de confrontación en España (1898-1939)
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Para la población civil, la guerra fue un tiempo de penurias y de miedo. Tanto en un bando como en el otro, la suerte que corrían los hombres movilizados en el frente, el miedo a la represión, la…
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Sintetiza. Las Primeras Vanguardias hasta 1914
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Recuerda lo que has trabajado en este apartado y contesta: Explica brevemente las características principales del Fauvismo, el Expresionismo, el Cubismo y el Futurismo y destaca sus similitudes y…
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Think about it. What plants need
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Remember what you have studied in this section and answer the questions: Why do plants sometimes need fertilisers to grow well? How does the way trees and animals get food differ? Which are autotrophs…
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The removal of cell waste
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4.1. What does excretion consist of? Cell activity produces waste products like carbon dioxide or urea. These substances are toxic for the organism if they accumulate. The function of excretion is…
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Work it out. Animal nutrition
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Remember what you have studied in this section and answer the questions: Is it possible to find a digestive system that does not use mechanical processes? And chemical processes? Explain your answer.…
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Think about it. Reproduction in mammals
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Remember what you have studied in this section and answer the questions: What are the advantages of a) a long gestation period, and b) being born in the spring or summer? Describe the new-born offspring…
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Match. Metamorphic rocks
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Match each type of metamorphic rock with the rock from which it originates: Quartzite Gneiss Marble Dolomitic marble Chalk
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Classify. Types of movement
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Indicate the type of movement in each case: Neptune orbiting the Sun. A parachutist jumping from the aircraft before opening his parachute. A parachutist with an open parachute, falling at a constant…
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Summaries - Heat and temperature
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1. Energy transfer: heat Heat or thermal energy is the energy that is transferred from hot bodies to cold bodies. All the particles that make up bodies have internal energy; the particles in a hot body…
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Unit 9: Motion and forces
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Accelerate (v): to go faster; to increase in velocity. apparent weight (n): the total sum of forces acting on a body. area (n): a quantity which expresses the extent of a twodimensional surface.…
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