Okay kiddo, a geotextile is like a special fabric that helps things stay where they're supposed to be.
Have you ever played with a sieve or strainer when you're cooking with Mom or Dad? It's like that, but the holes are so small that it can't let anything pass through it.
So, when builders or landscapers want to build something like a road, a bridge, or a retaining wall, they might use a geotextile to keep the dirt and rocks from moving around. It's like putting a blanket or sheet underneath the soil or rocks so they stay in place.
Geotextiles can be made from different materials, like polyester or polypropylene. They can also come in different colors, like black, green, or brown. Some geotextiles can also be recycled, which means they can help protect the environment too.
Overall, a geotextile is a special fabric that helps keep things in place, like soil or rocks, and it can be really helpful for building things like roads or walls.