grass growing is a physical change.
It is a physical change because it is still grass. Nothing new has been made.
Mowing is a mechanical process, not a chemical reaction.
Chemical. Because this affects your brain.
Lichen growing on tree bark is a physical change. The process involves the physical attachment of the lichen to the bark's surface, without any change in the chemical composition of the bark or the lichen itself.
First of all lets understand Physical & Chemical Change. Physical change can be reversed and the chemical properties of the two states remain the same. Chemical change cannot be reversed and the chemical properties of the two state are entirely different. Now lets get back to the question. Is growing a tree a physical or a chemical change. The growing of a tree requires chemical changes, primarily the conversion of water and carbon dioxide into cellulose and oxygen. So the growth results primarily from chemical changes.
It is a physical change because it is still grass. Nothing new has been made.
Grass growing in a lawn is a physical change because the origonal substance still exists. :) good luck!
Grass growing in a lawn is a physical property because it is a natural process of the grass changing in size and shape without altering its chemical composition.
Grass growth is not a chemical reaction but a chemical change because the grass will not go back to its original form after it grows. Like chemical change, a certain object will not go back or reverse it from its original appearance.
I would say a little of both. The consistensy of what grass is made of doesn't change,it enlarges, so it could be called a physical change. But to grow, the grass absorbes water and minerals and does photosynthesis, and creates large molecules, so this could be called chemical.
no
physical change
Mowing is a mechanical process, not a chemical reaction.
it is a chemical change
grass is a physical change.
Lawn-mowing is a physical change, whereas the grass dying is chemical.
Plant growing involve physical and chemical changes.