Boiling is a cooking method where a liquid, usually water, is heated until it reaches a temperature of 100 degrees Celsius (212 degrees Fahrenheit) at sea level. At this point, bubbles form and rise to the surface, creating a rolling boil. This process is commonly used for cooking foods like pasta, vegetables, and eggs, ensuring they are cooked thoroughly and evenly. When boiling, it's important to maintain the right temperature. If the heat is too high, the liquid can evaporate quickly, while too low a temperature may not cook the food properly. Using a lid can help retain heat and speed up the boiling process, making it more efficient for preparing meals with pasta or rice.