Simplify the following text for a Grade 7 native English-speaking person.
Original: The flag of Azerbaijan is one of the national symbols of Azerbaijan and consists of three equal horizontal bands , from top : blue , red , and green ; a white crescent and an eight-pointed star ( Rub El Hizb ) are centered in the red band .
Simplified: The flag of Azerbaijan is the national flag of Azerbaijan . It consists of three equal horizontal bands colored blue , red , and green , with a white crescent and an eight-pointed star are centered in the red band .