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Substances, materials and phenomena which can offer enough energy to produce it in its various forms. Light, water, wind, uranium, carbon, petroleum, etcetera… Humans utilize them mainly to produce electricity and heat.
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1.- Sheets. Support material that allows the teacher to explain the subject in the classroom.
2.- QR. With any QR reader on your mobile or tablet, you will access information related to the title and the image next of it.
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