Dogs are superbly investigative creatures who use their teeth (since they don’t have hands) to hold and manipulate things. It is normal for dogs to pick up objects and carry them about and, oftentimes, to find spots to store those objects.
Puppies are especially likely to use their mouths to investigate and chew objects because they are programmed to learn as much as possible about the world in a very short period. Young puppies also go through the painful process of teething as they lose their baby teeth and adult teeth grow in their place. Chewing can help alleviate the pain of teething.
The most important strategy in preventing the chewing of inappropriate items is to provide your dog with plenty of appropriate chew toys. I recommend toys that are hollow and can be stuffed with food. Also, don’t allow your dog to have too much freedom in your home before she can handle it. It is advisable to keep her on leash when you can supervise her. Avoid playing roughly or otherwise encouraging the dog to nip at hands, clothing, hair or inappropriate objects.