A hydrogen-powered ship is like a big boat that uses a special type of gas called hydrogen to move around. Hydrogen is a gas that can be made from things like water or natural gases.
When you take hydrogen gas and mix it with oxygen from the air, it creates an energy called electricity. This energy can be used to power things like motors and propellers which help move the ship through the water.
Hydrogen-powered ships are becoming more popular because they don't create pollution like other types of boats that use diesel or gasoline. This makes them better for the environment because they don't release harmful chemicals into the air or water.
Overall, a hydrogen-powered ship is a special type of boat that uses hydrogen gas to create energy and move through the water without harming the environment.