Color change can be a physical or chemical change. In physical changes, the substance's color may change without altering its chemical composition. In chemical changes, the color change is typically a result of new chemical substances being formed through a chemical reaction.
Physical weathering begins the moment a rock body is uplifted and fractured, or exposed to the atmosphere, along with it's differences in temperature, sunlight, and water.
The stage of life that begins when physical growth is complete is adulthood. This stage is characterized by the individual reaching their full physical maturation, typically in their late teens or early twenties.
The reactants
Both true and false. Rusting is both a chemical reaction (converting iron to iron oxide) and a physical process (the iron oxide absorbs water and hydrates, causing it to expand and fracture the rusting metal into pieces).
It certainly is, unless you get it so hot it begins to char (then it becomes chemical).
Freezing is a physical change.
This is a physical change. Chemical changes are changes in "what things are made out of".
It's physical. It just changes from state of matter to another one.
Burning a marshmallow results in a chemical change because the heat causes the marshmallow to undergo a chemical reaction, changing its composition and forming new substances such as ash and gases. This is in contrast to a physical change, which does not alter the chemical makeup of the substance.
Color change can be a physical or chemical change. In physical changes, the substance's color may change without altering its chemical composition. In chemical changes, the color change is typically a result of new chemical substances being formed through a chemical reaction.
No, the drying of wet hair is a physical change, not a chemical change. The change in state from wet to dry is due to the evaporation of water and does not involve any chemical reactions altering the composition of the hair.
Cooking involve many chemical processes but also some physical processes as evaporation or melting.
Food digestion is mostly chemical. The first step - chewing - is mechanical, breaking the food down into smaller pieces. Your saliva begins a chemical process to break down the food as well. In your stomach and intestines, the process is mostly chemical.
No chemical element begins with the letter Q.
Soil formation begins with the weathering of underlying rocks and minerals, which breaks them down into smaller particles. This process involves physical, chemical, and biological actions that gradually create a layer of soil on the Earth's surface.
Yes, rusting is a chemical change that occurs when iron reacts with oxygen in the presence of water to form iron oxide (rust). The formation of rust changes the chemical composition of the metal, making it a chemical change rather than a physical one.