Los materiales y el calor
👉https://drive.google.com/file/d/1NdvZ732NIcICVQzGAQwzTfLTf2Qg--Eg/view?usp=sharing
👉https://drive.google.com/file/d/18HqE_W3Bc5uMOeSpn4JG2c--SmocWkcZ/view?usp=sharing
