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Introduction - Weather and climate
EduBook Organización
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The weather and the climate are affected by atmospheric phenomena (temperature, humidity, precipitation, atmospheric pressure and wind). These phenomena exist in the Earth's lower atmosphere.…
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Summaries - The Earth's relief
EduBook Organización
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1. The outer layer of the Earth The Earth is made up of three concentric layers of different thickness: Core: the Earth’s deepest layer, which itself is made up of two separate layers. Mantle: the…
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The leaves make the food for the plant
EduBook Organización
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3.1. The anatomy of leaves Most plants have flat green leaves. The main part of the leaf is called the blade. The part that connects it to the stem is the petiole (figure 1). The veins which transport…
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Find out about...
EduBook Organización
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Other alternative energy sources Solar power and wind power are not the only sources of alternative energy. Geothermal energy This energy uses the heat from inside the Earth to produce electricity. The…
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End-of-unit evaluation - Weather and climate
EduBook Organización
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The weather and the climate are affected by atmospheric phenomena (temperature, humidity, precipitation, atmospheric pressure and wind). These phenomena exist in the Earth's lower atmosphere.…
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Summaries - Plant reproduction
EduBook Organización
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1. Reproduction in living things Reproduction in living things ensures that the species will continue. There are two basic types of reproduction: Sexual reproduction takes place when sex cells, known as…
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Living things and their habitat
EduBook Organización
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What is a habitat? The place where a living thing lives is called a habitat. It contains everything that the plant or animal needs to live. In each habitat there are other living things, like plants and…
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Check what I know
EduBook Organización
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Answer true or false: The physical environment consists of living things. → There are four important elements in the physical environment. → The air contains minerals. → Plants need…
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Activities - The natural environment
EduBook Organización
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The place where a living thing lives is called a habitat. When we study a habitat, we look at the living things (animals and plants) that live there. We also look at the non-living things around them.…
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Activities - Jobs (II)
EduBook Organización
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People who work in the service industry, like teachers and nurses, help other people. Every day we buy food, clothes and other products. This activity of buying and selling is called trade. We buy…
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