Recursos educativos página 16147

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Autoavaluació T06 08 - El narrador
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Escriu amb lletres les xifres de les frases següents: Un dipòsit de 6250 litres és omplert per 2 aixetes que ragen a raó de 25 litres per minut. En quanta estona s'ompliran els 2/3 del dipòsit?…
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Introduction - The Atmosphere
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The Earth is surrounded by a mixture of gases we call the atmosphere. The air we breathe is part of the atmosphere. The atmosphere is composed of a series of layers. The most important layer is the…
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Answer. The Earth's crust 1.1
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What is the Earth's crust? Which different features can we find on its surface?
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Minerals (II)
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3.1. Mineral properties Mineralogy is the science of studying minerals. Minerals can be identified according to their physical and chemical properties. The most important properties are density,…
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True/false. Evolution and biodiversity
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Are the following sentences true or false? The term biodiversity includes all the minerals in the Earth's crust. Biological evolution is the gradual transformation of living things in order to adapt…
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End-of-unit activities - The Diversity of Life
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There are more than one and a half million recorded species on Earth, and there are probably several million more to be discovered. Some places have extraordinary diversity. For example, tropical…
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Seed-producing plants. Angiosperms
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4.1. Angiosperms Angiosperms are plants with protected seeds that produce fruits. They have bright, colourful flowers. As well as vegetative organs (root, stem and leaves), angiosperms have…
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Complete. Nematodes and Annelids
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Complete the text with the missing words. wet – leeches – lugworms – worms – trichina – hairs Nematodes are thin, round . There are a large variety of free-living land nematode species,…
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Match. Economy and landscapes
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What type of economic activity takes place in each landscape?: The population is nomadic and raises livestock. Some inhabitants overexploit the wood from the trees. People traditionally live from…
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Raw materials
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1.1. Natural raw materials Raw materials are materials found in nature that can be transformed through industrial processes into usable products. They are classified according to their origin. Raw…
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