Bouyancy. A Boat/ship is hollowed out to be use to passengers, were as rocks are solid and have a lot less buoyancy.
because the boat is made out of stuff that can float
A boat
Density is the property that causes a ball to sink and a boat to float. If an object is denser than the liquid it is placed in, it will sink, while if the object is less dense than the liquid, it will float.
The science is called "displacement". If the shape of the boat allows the amount of the boat in the water to be less weight than the water it displaces it will float. If the amount of the boat in the water weighs more than the water it displaces it will sink.
It depends on the type of rock. A rock like sandstone would not sink if it is a small peice. Small rocks can float. That's when its called silt.
Density describes mass per unit volume. Pretty much all rocks will sink unless there is air in it
Granite rock is denser than water, so it will sink when placed in water.
A huge Viking boat floats due to its design and the principle of buoyancy, which states that an object will float if it displaces a volume of water equal to its weight. The boat has a large hull that displaces a significant amount of water, allowing it to support its weight without sinking. In contrast, a pebble is small and dense, displacing only a small amount of water relative to its weight, which is why it sinks. Thus, the boat's shape and volume enable it to float, while the pebble's density causes it to sink.
ducks go quack.........lol
Different things. For example, the Titanic sank because it hit an iceberg. Other ships sink because the weight on it is too heavy. It also depends on how sturdy the ship or boat is. If it is a handmade small boat, jump on it- and it will sink. if it is medium or big, someting like a rock or an iceberg can sink it.
A boat can float because the mass of the water it displaces is greater than the mass of the boat itself, creating an upward buoyant force. A rock, on the other hand, is denser than water and therefore displaces less water than its own mass, resulting in a downward force greater than the buoyant force, causing it to sink.
Virtually all types of rock will sink in water. The only rock that can float on water is pumice.