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Recursos educativos
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Introduction - The Earth and the Moon
EduBook Organización
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In the past, people believed that the Earth was flat and that the Sun passed over and under the Earth to produce day and night. Now we know that the Earth is a sphere. We also know that day and night,…
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End-of-unit evaluation - The Earth and the Moon
EduBook Organización
- 2797 visitas
In the past, people believed that the Earth was flat and that the Sun passed over and under the Earth to produce day and night. Now we know that the Earth is a sphere. We also know that day and night,…
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Match. Basic concepts of fishing
EduBook Organización
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Match each definition with a concept: It accompanies fishing boats far out to sea and conserves the catch so that the boats do not have to return home each day. The place where fishermen take their…
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Unit 9: The tertiary sector
EduBook Organización
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Balance of trade (n): the difference between the monetary value of the exports and the imports of a country. customs union (n): an agreement between the countries in a trade bloc that allows goods to…
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True/false. The birth of the modern world
EduBook Organización
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Which of the following statements about the birth of the modern world are true or false?: The economic expansion of the 17th and 18th centuries was accompanied by a new way of understanding the world…
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Summaries - Waves. Light and sound
EduBook Organización
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1. Waves An oscillatory or vibratory motion takes place around a central position. It produces the same amount of movement on both sides of this position. A wave is the transmission of an oscillatory or…
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Final Autoevaluation T12 02 - Waves. Light and sound
EduBook Organización
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Match the definitions to the concepts: This happens when light rays bend as they pass through a transparent medium. They then pass to a different medium that is also transparent. This is an effect by…
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Using our muscles
EduBook Organización
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Atrophy occurs when we do not use our muscles very much for a long period of time. Our muscles atrophy if we break an arm or leg because the cast stops us from producing movement and we cannot use those…
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Self-assessment T9 07 - The skeletal-muscular system
EduBook Organización
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Complete this text with the correct words: We use muscles to produce , force or both things. This happens when our muscles . A muscle contracts when it becomes shorter and thicker. Muscles are attached…
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Choose. Spanish society
EduBook Organización
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Choose the correct answer: The improvement in people's living conditions caused an increase in Spain's birth rate and a fall in the mortality rate,... Spanish migration was the highest it had…
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