1.transcrieti pe caiete tabelul alaturat si asociati grupelor de materiale din coloana A , materialele specifice corespunzatoare din coloana B.

   A                                                                  B

1.materiale de baza                     a.ata

2.materiale auxiliare                    b.blana artificiala

                                                        c.piei de caprine

                                                             d.cauciuc

                                                        e.carton

                                                         f.material de lipit

 

2.transcrieti pe caiete si completeti schema urmatoare:

 

                                                                                                  ...........

                                                             fara par----->               .............              

  materiale prime  -----> piei......                    utilizari        

     naturale                                          cu par - ------>       ...............        

                                                                                                            ..................