Matching Pairs A description of process.Online version Match each stage a-f below to the correct picture. by Ericka Abigail RodrÃguez Muñoz 1 2 3 4 5 6 The polymer is made into small balls called pellets. Oil is extracted from the ground. Ethylene and propylene are heated to make a polymer. Plastic products are made from the pellets. Pellets are sent to companies. The oil is processed at a refinery. Ethylene and propylene are produced.