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Metamorphic rocks
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5.1. The origin of metamorphic rocks Metamorphic rocks are formed when existing rocks are subjected to high pressure and/or temperatures. This formation process is called metamorphism. Metamorphism…
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Matter: atoms, molecules and crystals
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4.1. Atoms and their structure The earliest theories on atoms Over two thousand years ago, some Greek philosophers thought that matter was made up of tiny particles which could not be broken down or…
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Forces
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3.1. What are forces? Forces are the causes of changes in the velocity and direction of objects and also in the shape of objects. The SI unit of force is the newton (N). 3.2. Representing forces To…
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Match. Eclipses
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Match the sentences: In a solar eclipse, the areas of the Earth where the eclipse shadow is cast is complete, … When the Earth moves between the Sun and the Moon… A total eclipse of the Sun… The…
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$Reflection and refraction of light | Recurso educativo 483606$
Reflection and refraction of light
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4.1. Bending of light rays The effects of reflection and refraction of light happen because of the linear propagation of light. 4.2. Reflection of light Reflection happens when light rays meet a smooth…
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Match. Napoleon's political evolution
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Match the events with the date they happened: Napoleon Bonaparte is defeated at the Battle of Waterloo. Period known as the Consulate. Napoleon makes himself Emperor. Napoleon Bonaparte is named consul.…
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War and liberal revolution (1808-1814)
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1.1. The crisis of the Bourbon monarchy Charles IV (1788-1808) became king of Spain just a few years before the French Revolution began. Charles IV joined the coalition against France in 1793 and fought…
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True/false. The crisis of 1898
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Are the following sentences about the crisis of 1898 true or false?: In 1895, there was a nationalist uprising on the island of Cuba. The Cuban nationalists had the support of Great Britain. The…
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Complete. The outbreak of war
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Complete these sentences with the missing words: On 28th June Franz Ferdinand, heir to the Empire, was assassinated. Austria accused of having organised the assassination and declared . Other European…
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Asturian workers' demands
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Wage increases (…). Six-hour shifts for workers during the day and at night (…). Equal wages for equal jobs. Two months of paid holiday per year. The payment of 75 % of wages to unemployed workers…
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