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The parts of a plant
EduBook Organización
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All plants have roots, a stem and leaves. Some plants have flowers and fruit. Roots The roots hold the plant in the ground. They absorb water and mineral salts from the soil. Plants use these to make…
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Cells
EduBook Organización
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3.1. Living things are made up of cells All living things, also called organisms, are made up of cells. Numerous living things are made up of only one cell. They are called unicellular organisms. Other…
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Summaries - Prehistory
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1. The first humans. The Palaeolithic Age In Africa, six million years ago, some primates began the process of evolution. Over a very long period of time, these primate species evolved into humans.…
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The population of Spain
EduBook Organización
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1.1. Spain's demographic model Spain's population has followed the same model as other western European countries. During the 20th century, the high birth rates and high mortality rates began to…
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Before you start - Our planet Earth
EduBook Organización
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Didactic objectives Locate the Earth in space and understand the main characteristics of the Milky Way. Recognise and compare the planets of the Solar System. Know the size, shape and composition of…
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Self-evaluation 10 - Prehistory
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Re-write these sentences about Prehistory and correct the errors: Once the first humans learnt to use fire and cook, the size of jaws and teeth began to increase In the Palaeolithic Age, people were…
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Dhaka: fastest growing megacity in the world
Maria Pallarés Docente
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Video about Dhaka, the capital of Bangladesh. With its current population of 15 million people, Dhaka is the city with the highest population growth in the world. Between 1990 and 2005, the city doubled…
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Classify. Invertebrates
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With the following classification keys, identify the invertebrates in the photos. Although there are five sections to the table, you only need to identify the four insects pictured. After that, answer…
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Self-evaluation 2 - Weather and climate
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Which concepts do the following definitions refer to?: It is the degree of warmth in the air due to solar radiation. It is a gaseous layer more than 1 000 kilometres thick that surrounds the Earth. It…
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Blood circulation (II)
EduBook Organización
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The heart The heart is the organ that pumps blood to all the cells in our body. It is about the size of a closed fist. Its walls are made of muscle tissue. The heart contains four chambers: The two top…
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