Okay, kiddo, do you know what a flood is? It's when too much water accumulates in an area and causes damage to homes and buildings. The Flood Control Act of 1936 was a law passed by the US government to try and prevent or lessen the harm of floods in America.
Basically, the government decided to build dams and levees in certain areas to control the amount of water that flowed through rivers and prevent flooding. They also created a program where they would buy land in flood-prone areas and turn it into public parks or recreation areas, so people wouldn't build homes in those risky spots anymore.
The government worked with the Army Corps of Engineers to oversee all these projects and make sure they were done safely and efficiently. Many cities and towns still use these flood control measures today to protect themselves from floods.
So, in short, the Flood Control Act of 1936 was like a plan the government came up with to stop big water from causing problems and hurting people's homes and lives.