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Mountain landscapes
EduBook Organización
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Mountain landscapes Mountains are high elevations of land. A mountain has three parts: The peak is the highest part of the mountain. The foot is the bottom part of the mountain. The slopes are the parts…
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True / false. The continental landscape
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Which of these statements about the continental landscape are true or false?: The abundance of coniferous forest is thanks to the abundance of rainfall. Temperatures are high because of the distance…
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Video: Fatty Acid Metabolism
Tiching explorer Organización
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This presentation introduces graphically triacylglycerol, glycerol and fatty acids. It points out where dietary triacylglycerol comes from and how it is processed through digestion. We analize micelles…
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Matter: atoms, molecules and crystals
EduBook Organización
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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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Reading
EduBook Organización
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It is a sunny afternoon. Alice and her sister are sitting by the river. Alice’s sister is reading a book with no pictures. ‘I don’t like books without any pictures,’ Alice thinks. She is sleepy.…
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Think about it. The nature of light
EduBook Organización
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Remember what you have studied in this section and answer the questions: Look at the diagram of electromagnetic waves. State what happens to the wavelength, frequency and energy as you go from left to…
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Think. Respect for ecosystems
EduBook Organización
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The main objective of nature conservation is to protect living beings in their natural habitats and, to do this, it is necessary to understand and respect the relationships that exist between living…
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Analyse a photograph
EduBook Organización
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This photo shows an eruption of Mount Etna, in Sicily. Describe what you see in the photograph. Notice the lava flowing down the mountainside. What is it like? Do you think there could be any towns or…
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Reported speech (II)
EduBook Organización
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Change these reported statements, questions, requests and commands into direct speech. Mrs Cratchit asked Peter if he could help her to prepare the table. Bob Cratchit said that it was Christmas Day.…
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Reading
EduBook Organización
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Suddenly, Kaa comes down the hill fast and he is ready to attack the monkeys. They all know that Kaa can kill any animal and they are afraid of him. When they see him, they shout, ‘It’s Kaa! Run!…
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