Have you ever seen a spider spinning its web ? It is an
intricate but orderly process. First, the spider forms the
___1___ of its web by spinning sticky threads in the shape of a
square fixed to leaves or branches. Then it starts to ___2___
more threads from the edge to the center of the web. The web
begins to ___3___ shape, and resembles a cart-wheel. Then the
spider moves in a circular ___4___ around its web starting from
the outside, spinning threads as it moves ___5___ forming
circles and circles of thread until it completes the whole
___6___ in the middle of the web. the whole process takes
approximately an hour. The thread ___7___ by the spider may
look thin and delicate but it is actually very strong. It gets
harder as it dries up. If you look at the thread under a ___8___
you will notice that it is covered by a sticky substance. This
sticky stuff ___9___ as a glue while the web acts as a trap.
Small insects can easily be caught by the web as the threads are
colorless and difficult to see. Once they are caught, they will
find it difficult to ___10___ as they are stuck to the web by
the glue. As they struggle they find that more parts of their
body gets stuck. Meanwhile, the spider ___11___ from behind the
leaves or branches. When it sees that the insect has tired
itself, it will go for the kill. Small insects are easily killed
and eaten. But if the ___12___ is large and dangerous like a bee
or a wasp the spider will spin more ___13___ around it. tying it
up as one might a prisoner with rope. In this way, it saves
itself from being attacked. |