Why Bridges Don't Sink?

Bridges don’t sink because they’re built to float, just like a toy boat on water.

Imagine you're playing with blocks in the bathtub. If you put one block in the water, it sinks, but if you stack a bunch of blocks together and spread them out, they float! That’s kind of what happens with bridges.

Bridges are like big, strong boats made of rods, beams, or even gravel. These materials help spread the weight of cars, trucks, and people across a wide area, just like how your blocks spread out in the water to float better.

If you put all that weight on one spot, like stacking all your blocks in one corner of the tub, it might sink, but bridges are built so the weight is shared evenly, making them stable and strong. That’s why they stay up high above the water instead of going down with it!