Chemical Changes

By: Ava Sprague

Chemical Changes:

Chemical change is where a new substance is formed. They are not reversible except by further chemical reactions.

The Difference Between Chemical and Physical Changes

The difference between a physical and chemical change is a chemical change makes a substance that wasn't there before. There may be clues that a chemical reaction took place, such as light, heat, color change, gas production, odor, or sound. The starting and ending materials of a physical change are the same, even though they may look different. A Physical change stays the same substance even though the substance may look different it is still the same material even if it changes states.

Examples of Chemical Changes

Baking Soda and Vinegar


Rusting of iron

Burning of paper (ash)

Baking a cake

Tree leaves changing colors in fall

Blushing Cheeks