three physical changes of making a s'more would be breaking the chocolate, breaking the crackers, and chewing the s'more when it's in your mouth.
This process involve chemical reactions but also physical changes.
Explosions are a form of either combustion or decomposition (or both) reactions, and they are chemical changes.
It is a physical process.
Cleaning is a physical process but sometimes can involve chemical reactions.
chemical reactions
Without a chemical reaction it is a physical process.
Physical and chemical change can have many positive effects on humans. The process of growth involves many reactions and visible changes, resulting in a stronger, more intelligent person.
Exercise is a chemical process but it is accompanied by many chemical reactions in the body.
A biological process imply chemical and physical changes.
a chemical reaction
It is a chemical change, involving chemical reactions. Only water evaporation is a physical process.
Frying an egg is a chemical reaction - or change. The chemical composition of the egg changes when it is fried, and cannot be reversed.