Recursos educativos earth página 129

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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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Remember - Natural and man-made landscapes
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There are places on Earth that have not been changed by humans. These are called natural landscapes. Landscapes that have been changed by humans are called man-made landscapes. There are three different…
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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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Remember - 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 - Energy
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1. Energy Energy is the power that causes change in things and allows us to carry out work. Energy is produced by energy sources. The main source of energy on Earth is the Sun. Energy exists in several…
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End-of-unit activities - Climate and vegetation in Spain
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Most of Spanish territory is located in the temperate zone of the Northern Hemisphere. This is why Spain's climate is generally temperate. On the Iberian Peninsula, factors like distance from the…
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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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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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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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