As the daughter of a (former) dairy farmer, I love milk and all its derived dairy products (e.g., cheese and butter). However, it wasn’t until my colleague Michele highlighted a kid science app that I realized milk is a great science medium as well. In fact, I recently discovered mixing vinegar with milk will create moldable plastic. Not only is this milk-derived product fun for kids and adults, but it also offers a history lesson: the resulting substance was used before petroleum-based plastic was available. Watch the video to learn about a fun kitchen experiment and potential handmade gift opportunity all in one package.