Rice noodles are made from rice flour and water, while rice sticks are made from rice flour, water, and tapioca starch. Additionally, rice noodles are more fragile with a lower gluten content than rice sticks. They also cook faster than rice sticks, but they can become mushy if overcooked. Rice sticks are more resilient and have a higher gluten content, making them better suited for stir-frying. Finally, rice sticks take longer to cook than rice noodles, but they won't turn mushy if you overcook them.