They weigh almost nothing, yet the yet they nger than steel. In fact, some spiders webs are among the world's strongest strong materials, but they stretch more than elastic. They can also be any shape. Spider webs are amazing. CHANGING FOR THE CONDITIONS A spider's silk-making organ' has hundreds of small openings. Silk comes out of these openings as a liquid, and, as it reaches the it becomes thread-like. These tiny threads air combine to form a single, solid thread he The spider can make many different kinds The silver argiope spider catches a beetle in its web. A of thread. The threads can be thick or thin wet or dry, sticky or woolly. Each kind has a different purpose. Some webs create an egg case provide hiding places. The most common purpose of a spider web, however, is to catc TRICKS FOR CATCHING DINNER There are many ways the spider uses its web to catch prey. For example, some o spiders spin a single thread. An insect then sits on it without realizing what it is doing, and becomes stuck. Slowly, the spider moves toward the insect. Suddenly, it covers its prey in silk Argiope spiders use a different kind of trap. They make webs that confuse insects. An insect sees the web and thinks it's a flower. It then lands s on the web. The spider can feel even the smallest movement of the web, and rushes at the insect before it can get away Spider webs are so amazing that engineers have been studying them for year They want to learn why they are so strong and flexible. However, for the moment, spiders are keeping their secrets. Despite their science and technology, humans still been able to haven't copy natural webs.