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Recursos educativos
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Changes of state
EduBook Organización
- 2044 visitas
2.1. Changes of state of water Water is the best known example of a substance that occurs in the three states. Changes of state are caused by the action of heating or cooling (or changes in pressure).…
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Comprehension check
EduBook Organización
- 2059 visitas
Answer the following questions. When did the Atlantic slave trade begin? Which country was the first to start trading in slaves? Who was the first Englishman to start trading in African slaves? Where…
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Identifica. Noticia periodística
EduBook Organización
- 2033 visitas
Identifica las seis “W” de esta noticia –del inglés Who (Quién), What (Qué), Where (Dónde), When (Cuándo), Why (Por qué) y How (Cómo)– y otras informaciones adicionales: detalles del…
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Comprehension check (PET)
EduBook Organización
- 1 lo usan
- 1826 visitas
Look at the sentences below about the events and characters in Part Six and decide if each sentence is correct or incorrect. Mr Otis and Cecil rode to the station to ask about Virginia. The Otis family…
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The weather
EduBook Organización
- 2006 visitas
Climate. Climate describes the general weather conditions of an area over a period of time. Precipitation. Precipitation can fall as rain, snow or hail. Clouds. Clouds are formed when water vapour cools…
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Final Autoevaluation 1.02 - Plant nutrition
EduBook Organización
- 2003 visitas
Graph a shows how the size of the pores in the stomata changes when a plant is exposed to light. Describe the changes: ➞ At... o'clock the pores measure... By... o'clock they... bigger/smaller…
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Tools and machines
EduBook Organización
- 2011 visitas
What is a tool? A tool is an instrument that we use to make our work easier. We operate tools using our hands. Humans used rocks, bones and sticks to make the first tools. These included axes, hammers…
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Learn. Reading graphs
EduBook Organización
- 2005 visitas
Graphs and charts are helpful tools in geography because they provide us with a lot of information very quickly. It is very important to be accurate and precise when reading a graph, and to explain as…
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The rural problem
EduBook Organización
- 1 lo usan
- 1791 visitas
There is no doubt that, as I said, one of the greatest ills we suffer is the unequal distribution of land and that most of it is in the hands of the few (...). That the excessive extension of this…
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Chemical reactions
EduBook Organización
- 1991 visitas
What is a chemical reaction? Chemical reactions are processes that turn certain substances into other substances. These are the products of the reaction. Heat is sometimes a product of the reaction.…
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