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Video: Catalysis
Tiching explorer Organización
3162 visitas
This animation shows how reactions are driven by energy changes and how enzymes, as catalysts, increase the rates at which reactions take place. By hovering with our mouse over the reactions we can…
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Video: Musica y Pasión
Educatube Organización
3095 visitas
This 20 minute video is a moving speech by the orchestra director Benjamin Zander on appreciating classical music. Students may talk about their tastes and their experience. He proves that none is…
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Unit 12: Spain under Franco (1939-1975)
EduBook Organización
2203 visitas
Autarky (n): economic self-sufficiency, requiring no imports from outside. black market (n): a system where goods are bought and sold illegally outside official channels. Blue Division (n): a unit of…
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True or false. Earthquakes
EduBook Organización
2208 visitas
Answer true or false: An earthquake last for hours. We feel all earthquakes. Large scale earthquakes can cause huge damage. The hypocentre is the point inside the Earth where the earthquake originates.…
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Check what I know
EduBook Organización
2197 visitas
Answer true (T) or false (F): Machines make our work easier. → There are three types of machines. → We use pulleys to lift objects. → Wheels consist of a disc and an axle. → …
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Did you know... Technological advances
EduBook Organización
2200 visitas
Technological advances have helped companies to increase their productivity, lower labour costs and save time. Today, most big companies have their own laboratories to research into new technology, make…
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End-of-unit evaluation - Animal reproduction
EduBook Organización
2201 visitas
In the last unit you learnt how humans reproduce sexually. Most other animals also reproduce sexually, by the fertilisation of an egg by a sperm. This involves the participation of a male and a female.…
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Experiment. Digestion
EduBook Organización
1 lo usan

2012 visitas
Digestion starts in the mouth. To check this, we are going to carry out an experiment: Put a piece of bread in your mouth. Do not chew it, and wait for a few minutes. Once you have waited a few minutes,…
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Tell me about Christmas - Part 2
British Council Organización
2912 visitas
In this activity we learn about English traditions related to Christmas. Before watching the video, we can learn and check some vocabulary. Once we have watched it, we can do some comprehension…
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Grammar: Quantity
Tiching explorer Organización
1 lo usan

2695 visitas
We can learn grammatical aspects concerning quantifiers, such as which ones do we have to use for countable/uncountable nouns, the use of any, when do we have to use much or many. In order to ease…
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