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Materials that conduct and insulate heat
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7.1. Thermal conductors and insulators Materials are classified into heat conductors and insulators, according to how they transmit heat. Conducting materials, like metals, let heat pass through them by…
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Talk about it. Heat and temperature
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Look at the pictures and answer the questions: Give the name of five heat sources. What type of energy transforms into heat in a wood fire? How does a radiator work? Which fuel is usually used in…
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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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Materials
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5.1. What are materials? Materials are substances that we use to make things. There are two types of materials: Natural materials are materials found in nature. Wood, wool and oil are examples of…
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Self-assessment T04 06 - The age of discoveries
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Complete this text with the correct words: The indigenous peoples who lived in the before Columbus's voyage are called the . The most important pre-Columbian peoples were the , the and the . They…
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Choose. Archaeological materials
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Imagine that you are one of a group of archaeologists who have excavated a Neolithic village. Remembering that after so many years only inorganic materials will remain, mark which items in the following…
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Answer. Materials and their properties
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Remember what you have studied in this section and answer the questions: What are the two main groups of materials? What does resilient mean? And what does elastic mean? Think about the materials that…
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Listening (KET) - Matthew Kelly
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Listen to the first part of Chapter Four and choose the correct answer. Where was Matthew Kelly? What did Dorothy find? What could Matthew see from his window? What did Matthew want to build in Wood…
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Final self-evaluation 05 - Prehistory
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Complete the text with the correct words: mud fertile settlements wood sedentary rivers In the Neolithic period, human beings lived in permanent and became . These settlements were situated in areas,…
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Vocabulary - Activities
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Match the articles with the pictures. A very large piece of cloth A very large metal box Some pieces of white material Machine with twenty pieces of metal on it A very long tube of metal attached to a…
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