Like a silver spoon turning black (tarnish) or a green leaf turning orange in the fall.
The mixture suddenly gets very hot or very cold without you touching a stove or freezer.
Two liquids are mixed together and a solid "chunk" suddenly appears. ⚡️ Common Examples
Iron reacting with oxygen and water to create iron oxide. Burning: Wood turning into ash, smoke, and heat.
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?
Enzymes in your stomach breaking down food into nutrients.