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This category contains resources about the characteristics of materials, properties, its permanent and temporary transformations and their optimization for the environment (strategy of the three Rs): Reuse, recycling, reduction, etc.
Similarly, the principles of simple machines, its function and how they help everyday tasks are addressed.
Flash. Propiedades de los materiales
Video acerca de las propiedades de la materia
Proceso de elaboración de los lápices de color
Estrategia de las tres erres
Ciclo hidrológico
Máquinas Simples: CN 3 bim Sexto Grado
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