Engineering for Good is a project-based learning unit from KQED; lesson 2 of 10, 'Investigate the Plastic Problem', introduces the issue with short video and student handouts, and the unit ends with students designing and pitching a solution. Aligned with the Next Generation Science Standards (NGSS). Some of the best short videos for 8–14s live here; each item shows its own stream, download and share permissions.
Who made and funded this: PBS LearningMedia (US public broadcaster) with KQED; public and foundation funding. How to use it: free with a teacher account; check each item's rights flag before embedding. Link only.