Simple or complex machines?


Simple or complex machines?Versión en línea Simple or complex machines? por Luz Álvarez Herrero 1 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX 2 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX 3 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX 4 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX 5 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX 6 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX c SIMPLE d COMPLEX 7 SIMPLE OR COMPLEX MACHINE? a SIMPLE b COMPLEX c SIMPLE d COMPLEX