A chemical change happens when two or more substances interact to form a with different properties. Think of it like baking a cake: you start with flour, eggs, and sugar, but you end up with something that looks, smells, and tastes completely different. Key Characteristics: The change is usually difficult to reverse . New molecules are formed. The identity of the matter changes. 🔍 5 Signs a Chemical Change Occurred
Iron reacting with oxygen and water to create iron oxide. Burning: Wood turning into ash, smoke, and heat. Chemical Changes: Crash Course Kids #19.2
A new smell is created (like food rotting or a match striking). A chemical change happens when two or more