A new smell is created (like food rotting or a match striking).
The mixture suddenly gets very hot or very cold without you touching a stove or freezer. Chemical Changes: Crash Course Kids #19.2
Enzymes in your stomach breaking down food into nutrients. A new smell is created (like food rotting
In this episode of Crash Course Kids, Sabrina explains how to tell if a chemical change has occurred. Unlike physical changes, which only alter the appearance of a substance, chemical changes create something entirely new by rearranging atoms. 🧪 What is a Chemical Change? Chemical Changes: Crash Course Kids #19.2
How can you tell if a reaction is happening? Look for these "clues":