Across Arctic Alaska, once-clear rivers are shifting to shades of pumpkin, rust and even blood red, a startling visual proof ...

Chemical reactions involve the interaction and transformation of molecules. The Maillard reaction is one example that occurs in baked goods, where sugars react with proteins to create new molecules ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...