Recursos educativos water página 85

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Calculate. Volume
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How many metres squared are 250 dm3 and 56 cm3? m3 The volume of a tube of toothpaste is 75 mL. What is the equivalent measurement in cm3? cm3 Calculate the volume of a water tank whose measurements are…
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Non-renewable sources of energy
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4.1. Coal Coal is a solid, black rock. It is the fossilised remains of huge masses of vegetation buried under the ground millions of years ago (figure 1). It is used mainly as fuel in coal-fired power…
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Reptiles dominated the Earth
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200 million years ago, reptiles dominated all of the Earth's land, air and water. Dinosaurs took many forms. They were the biggest land animals that have ever existed. The diplodocus, for example,…
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How are folds formed?
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For a rock to bend without breaking, certain conditions are necessary during the process of deformation: The rock must be under great pressure and at a very high temperature. This gives the rock a…
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Find out about...
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How industrial activity evolved Craftsmanship In the Middle Ages, the master craftsman owned his workshop and tools. The production process was slow and labour intensive. These artisans belonged to a…
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Machthe pictures to the sentences
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Machthe pictures to the sentences: He is using the force of the wind. → The atmosphere is a layer of air that surrounds the Earth. → They produce oxygen. → It can fly because when air…
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Calculate - End-of-unit activities
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A person travels from Spain to the United States, where the temperature is measured in degrees Fahrenheit instead of degrees Celsius. How would you make the conversion between one system and another? To…
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Initial evaluation 4 - The Plant Kingdom
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Complete the following sentences with the missing words: During photosynthesis, plants produce a gas called . The is the part of the plant that absorbs water and minerals from the ground. The…
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Self-evaluation 8 - Climates and landscapes of the Earth
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Which of the following factors determines or does not determine the climate of the Iberian Peninsula: The predominance of irregular coastline. A high average altitude. Being surrounded by water. The…
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Did you know...
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After World War II, the governments of many countries nationalised certain services, including transport, water, electricity and healthcare. These services were created and managed with money from taxes…
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