Write an activity to show that synthetic fibers are stronger than the cotton fibers.

Take two threads. One made of cotton (A Natural fibre) and the other made of nylon (A synthetic fibre). Attach one end of both the ropes to a rigid support. Now, on the other end, hang a particular amount of weight. Keep adding weights until the cotton thread breaks. You will notice that Nylon has a greater tensile strength than Cotton.

More weight is required to break the nylon rope than the cotton rope.