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Calculating volume and mass
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1914 visitas
A block of granite is 30 cm high, 40 cm wide and 50 cm in length. The granite density is 2.6 g/cm3. What is the mass of the granite expressed in kilograms? To solve the problem, we do the following…
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Talk - Festivals and traditions
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1894 visitas
Today we celebrate new traditions such as Halloween. Halloween is celebrated on 31st October in the USA and in other countries around the world. To prepare for Halloween, children make costumes and…
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Experiment. Sponges
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1882 visitas
In some sponges, the interior skeleton is soft, flexible and resistant. We can use these sponges to wash ourselves with. Today, we also use synthetic sponges which are made from different types of…
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Interpret. Hot climate landscapes 03
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1880 visitas
Draw a climate graph (download PDF) for the temperatures and precipitation of Aïn Salah (Argelia) in the Sahara desert, and for Antofagasta (Chile) in the Atacama desert: Observe the total…
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Match. Definitions
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1871 visitas
Match each definition with the correct word: Made up of many different cells. ➝ A very small component of all living things. ➝ A round structure that controls what the cell does. ➝ Made up of just…
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Choose. From Spain to France
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1872 visitas
Imagine you are going to France by car and answer the questions: Which mountain range must you go through to cross the Spanish border? What is the highest mountain in this mountain range? Which other…
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Interpret. Evolution of the global population
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1858 visitas
Look at the graph and do the activities. How many inhabitants were there in the world in 1950? What percentages did the rural and urban populations represent? Answer the same questions for 2010 and use…
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Calculate. Measuring living things
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1849 visitas
To measure living things as small as bacteria or viruses, we use nanometres (a billionth of a metre) and micrometres (a miliionth of a metre). What fraction of a millimetre are a micrometre and a…
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Internet project 01
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1881 visitas
Look again at ‘A Note on Oscar Wilde’ at the beginning of this book to remind you of Oscar Wilde’s most important works. How many of Wilde’s works have been made into films? What films have been…
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Speaking - Travelling around London
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1862 visitas
Talk to a partner about travelling round the place where you live. Use these questions to help you. Is there an underground system where you live? Do you use it? Why? Why not? How do you usually travel…
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