Goggles are special glasses that you wear to protect your eyes. Your eyes are very important, and you need to take great care of them. Sometimes, when you go swimming in a pool or in the ocean, your eyes can get hurt if water gets into them. When you wear goggles, they keep the water away from your eyes, so you can swim and see clearly without getting hurt. Goggles are also used by scientists and people who work with hazardous chemicals or materials to protect their eyes from harm. Just like you wear a helmet to protect your head when you ride a bike, wearing goggles protects your eyes from harm when you swim or work with dangerous stuff.