A) true B) false
A) True B) False
A) green materials B) properties of materials C) complex machines
A) simple machines B) complex machines
A) false B) true
A) plastic B) versatile C) aluminium D) bamboo
A) bulding,cloth,food,steel B) cloth,furniture, cloth,metals C) food,furniture,construction,cloth
A) work B) human energy C) jobs D) wheel
A) complex machine B) simple machine
A) complex machine B) simple machine
A) politja B) palanca C) pla inclinat |