One type of silk formed by all spiders is the type used for wrapping prey. Another type of silk is used to make the egg sac, and yet other is a sticky type often used as part of a web. However, spiders that do not spin webs do produce silk. Some live in burrows which they line with the silk from their silk glands. Young spiders ride the wind on long silk threads in a process that we call ballooning.
Most spiders put their eggs into silk sacs.
Spiders are found all over the world in all sorts of habitats from the sea shore to the dessert - on the ground, under rocks, on plants, in trees, in caves, on water. Each type of spider tends to be found in a habitat to which it has become specifically adapted. All spiders, of course, travel around their immediate territory on foot. But small and young spiders can travel for many miles being carried through the air by a breeze. This method of travel is called ballooning.