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