A windshield is like a big piece of glass that sits in front of a car so that the driver and passengers can see through it to the road and everything around them. It's really important because without it, it would be hard to see where the car is going, and that could be super dangerous! The windshield is also made to be tough and strong, so that if anything hits it while driving, like a rock or a bird, it won't break and hurt the people inside the car. Plus, sometimes windshields are made with a special coating on them to help keep the sun's bright rays from hurting the driver's eyes. So basically, a windshield is a super important part of a car that keeps people safe and helps them see where they are going when they ride in a car.