When you're waiting for a pot of water to heat up on the stove, tiny bubbles are the first sign it's getting ready to boil. As the water gets hotter, the bubbles get bigger, until a rolling boil ...

Water bubbles on a stove because heat spreads unevenly, creating spots for steam. Microwaves heat water uniformly, often preventing bubbles and leading to superheating. This can cause sudden eruptions ...