Physical-it is still wood, just in small pieces
Yes, the wood canot be remade from the saw dust and therefore, the wood has undergone a physical change
Sawdust is not a change. Making solid wood into sawdust by sawing it would be a physical change.
physical change
The sawdust is a physical change.
These are physical changes.
njh
Chemical change
It is a physical change because it is still grass. Nothing new has been made.
Tearing paper is a physical change as you do not change what the parer is made of.
It is a physical change as an alloy is a solid solution made from various metals. As you can still separate these different metals after the alloy is made it is a physical change and not a chemical change.
njh
There are two kinds of changes - physical and chemical. It depends on how the change is made.
Sawing a board in half is not an example of chemical change. It is an example of a physical change. Physical changes on a substance do not change the substance. When you saw a board in half, the two halves of the boards are still boards- they're not anything else.
Chemical change
In a chemical reaction something new is created. A chemical change is inreversible where as a physical change is. In a physical change nothing new is formed.
It is a physical change because it is still grass. Nothing new has been made.
It is physical. The wire changes shape, but it is still made of the same materials.
Chemical
That made no sense...
Tearing paper is a physical change as you do not change what the parer is made of.
During a physical change, the matter of what the substance is made out of doesn't change.
It is a physical change as an alloy is a solid solution made from various metals. As you can still separate these different metals after the alloy is made it is a physical change and not a chemical change.