Around 200 years ago, people built the first large factories. They used machines powered by steam engines. This period is called "Industrial Revolution".
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Forces and machines
Watch these videos to learn more about forces and machines 👇 A machine is a device that does a task. It makes our lives easier and saves t...
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Aquí os dejo algunas actividades interactivas para ir practicando el vocabulario relacionado con la NAVIDAD en inglés. Haz clic en la imagen.
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