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Formas y fuentes de energía

Ciencias de la Naturaleza

definición de energía, tipos y fuentes de energía

El sonido

Ciencias de la Naturaleza

sonido y cualidades

Test naturales

Ciencias de la Naturaleza

Test para repasar

Ahorro de energía

Ciencias de la Naturaleza

Ejercicios de completar y de señalar las opciones correcta

Transformación de la energía

Ciencias de la Naturaleza

La energía y sus funciones

Ficha sobre la energía

Ciencias de la Naturaleza

La energía

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