TEMA 7. MATERIA, FUERZAS Y MOVIMIENTO

https://youtu.be/6ceMI27Tbyw
https://www.youtube.com/watch?v=OhwjDTlsQak
https://www.youtube.com/watch?v=j2Akqv5J4DE
https://www.youtube.com/watch?v=CtTiNLoMKe8
https://www.youtube.com/watch?v=AZnZIM1S_VA