Learn how to dynamically control particle size (and color!) based on Curl Noise Force in Unreal Engine 5 Niagara! In this tutorial, we tackle an Unreal Engine community forum question to see how Curl Noise / Physics Force can drive parameters like particle scale, color blending, and more. 
https://dev.epicgames.com/community/learning/tutorials/19m6K/dynamic-particle-size-unreal-engine-5-4-size-by-curl-noise