How Do Ships Float Even Though They’re Heavy?

Imagine you're in a bathtub with water up to your waist. When you jump in, the water level goes up, that’s buoyancy at work! Ships are like giant bathtubs made of metal. Even though they’re heavy, they float because they push aside enough water to match their weight. It's all about balance: if a ship is too heavy or not wide enough, it might sink, just like you would if the tub were full and you jumped in!