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Recursos educativos
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The discovery of America
EduBook Organización
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Columbus arrives in America On 3rd August 1492, Columbus's three ships left the port of Palos in Huelva. After two months, they arrived on the island of San Salvador in the Bahamas. Columbus thought…
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Investigate. Respiratory system
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Our respiratory system can be affected by allergies if the air we breathe contains certain substances, like pollen. Asthma and rhinitis are two common types of allergies. What is an allergy? What are…
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True / False. How do muscles move?
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Are these sentences true or false? We only use our muscles to produce movement. When we produce movement or force, our muscles become shorter and thicker because they contract. When the muscle…
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Self-assessment T9 07 - The skeletal-muscular system
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Complete this text with the correct words: We use muscles to produce , force or both things. This happens when our muscles . A muscle contracts when it becomes shorter and thicker. Muscles are attached…
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End-of-unit final evaluation T10 03 - The nervous system
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What does the brain consist of? What protects the brain?
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Summaries - Machines and structures
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1. Electrical current An object becomes electrically charged when it contains an electrical charge. Some objects become electrically charged when we rub one against the other. For example, when you rub…
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Answer. Tools and machines
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What is a tool? Give two examples of prehistoric tools and two examples of modern tools. What is the difference between a hand tool and a power tool? Give one example of each type of tool.
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Think and answer. Science and technology
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Think and answer: Describe what you can see in the photos. Give examples of scientific progress in the 20th century. Do you use the Internet? What do you use it for? What is an e-mail? How do you send…
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España, un territorio de Europa - España, un territorio de Europa
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España é un país de Europa. A meirande parte do seu territorio está situado na Península Ibérica, no Suroeste do continente. Tamén forman parte do territorio español as Illas Baleares, as Illas…
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Verdadeiro/falso. Agricultura, minaría e comercio en época romana
EduBook Organización
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Sinala cales das seguintes afirmacións son verdadeiras e cales son falsas: Os romanos melloraron as técnicas agrícolas de iberos e celtas. Os romanos introduciron un novo sistema de arado e técnicas…