* Physical Change: A change in the form or appearance of a substance, but not its chemical composition.
* The pencil is still made of the same materials (graphite, wood) even though it's now in two pieces.
* You haven't created any new substances.
* Chemical Change: A change that results in the formation of new substances with different chemical properties.
* Burning the pencil would be a chemical change because you would create ash and other byproducts.
Let me know if you have any other questions!
