Okay kiddo, you know how there are big canals that let boats through from one place to another? Well, sometimes when there is a lot of water in the canal, it can be dangerous for boats to go through. That's why there are canal safety gates.
Canal safety gates are like big doors that can be opened or closed to control the amount of water flowing through the canal. Think about how you can open or close a door in your house. It's the same idea, but the doors for the canal are much, much bigger! They can be made of metal or concrete.
When the gates are closed, they block off the water and make the canal into a smaller space, so that the boats can be safely moved through. This is especially important during floods or heavy rains, when there is a lot of water in the canal.
On the other hand, when the gates are open, they let the water flow freely through the canal. This is important when there isn't a lot of water in the canal and boats need to move through easily.
The canal safety gates are controlled by special machines that can open or close them remotely. That means people don't have to go out and do it manually, which would be very dangerous.
So, canal safety gates are important because they keep people who travel on boats safe by controlling the amount of water that is flowing in the canal.