Okay kiddo, ancient Greek art is like taking really cool pictures or making really nice drawings but it's a lot older than you or I. It's something from a long long time ago.
The ancient Greeks were very good at making statues and pottery. They cared a lot about making things look perfect and beautiful. They used a lot of their own skill and creativity to make art, but they also looked at nature for inspiration. They paid attention to the way things looked in real life, like how a person's muscles move or how a bird's wings spread out.
Greek art was also used to tell stories. They would make pictures on pottery, called vases, that would show what happened in different myths and stories. They would also make statues of their gods and goddesses, so people could see what they looked like.
The Greek artists used a lot of different materials to make their art. They used marble, which is a type of rock, to make statues. They also used bronze, which is a metal, to make big, shiny statues.
Greek art was very popular and lots of other people copied their style. Even today, many people still think that ancient Greek art is some of the best art ever made!