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Final self-evaluation 1.7 - Matter and Materials
EduBook Organización
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Complete the following sentences with the missing words: Pure are made up of a single type of element, like iron, or compound, like , the of which do not vary. Substances made up of different elements…
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Check. Spanish society in the 19th century
EduBook Organización
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Remember what you have studied in this section and answer the questions: Who made up the ruling classes in the 19th century? What economic activities did they engage in? How had both changed with…
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Compound machines
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What are compound machines? Compound machines are made up of various simple machines. Scissors, pliers, gears, bikes and cars are examples of compound machines. Pliers Pliers are made up of two levers…
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Pure substances and mixtures
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4.1. Pure substances and mixtures Pure substances are substances made up of a single type of element or compound. Two examples of pure substances are iron and salt. A mixture is made up of different…
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Answer. Unicellular and multicellular organisms
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Remember what you have studied in this section and answer the questions: What are organisms made up of a single cell called? How do they reproduce? What do we call living things that are made up of many…
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Matter: atoms, molecules and crystals
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4.1. Atoms and their structure The earliest theories on atoms Over two thousand years ago, some Greek philosophers thought that matter was made up of tiny particles which could not be broken down or…
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The transport of substances in plants
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2.1. Plant transport systems Plants have two transport systems, one for each type of sap that is transported: Xylem. This system transports raw sap (water and mineral salts) from the root up the stem to…
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