Recursos educativos earth página 61

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Answer. The world's rivers and lakes
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Find the names of the rivers that the following sentences refer to: It has the highest flow of any river on Earth: It is the river with the largest volume of water in Africa: It has the highest flow of…
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The Solar System
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1.1. The Solar System The Solar System is made up of eight planets, three dwarf planets and other celestial bodies, like comets, asteroids and satellites. The Sun is at the centre of the Solar System,…
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Investigate - Obtaining and using energy
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Energy drives the Universe and is part of all the changes which take place on Earth. The Sun is our main source of energy. Without it, there would be no life and most other sources of energy would not…
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Summaries - Matter and its properties
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1. Matter Matter is anything which has mass and volume. For example, the Sun, the Earth, and human beings are all made up of matter. A physical system is any part of the Universe which is made up of…
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Calculate - End-of-unit activities
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How far does light travel through water in 10 s? A robot sent a signal at the speed of light from the planet Mars. It took 3 minutes to reach Earth. How far away is Mars? How far does sound travel…
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Check. Test yourself
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Remember what you have studied in this unit and answer the questions: What is the temperature of the matter at the Earth's core? How fast do tectonic plates move? How do two touching plates move in…
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Unit 5: Weather and climate
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Altitude (n): the height of land measured from sea level. atmosphere (n): a gaseous layer that surrounds the Earth. climate (n): the atmospheric conditions that exist in a region over a long period of…
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Learn. [...]
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The environmental costs of energy production Pollution of the environment due to the way we obtain and use energy produces adverse effects like the following. Acid rain Contaminating, harmful gas…
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Overfishing
Laia Docente
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Over three quarters of our planet are covered by the oceans. Their biodiversity is unmatched and they contain over 80 percent of all life on earth, mostly unexplored. Millions of people worldwide are…
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The feudal nobility
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2.1. The king and his vassals According to the Church, monarchs were the representatives of God on Earth. Their mission was to govern their people and maintain a unified kingdom. The territory of the…
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