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types of changes chemical or physical
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Physical Change or Chemical Change?
By: H. Marcum
What is the difference?
A physical changes can be reversed.
Water can change to a gas, to a solid and back to water. This is an example of physical change.
Physical change can change shapes
A tree to a baseball bat is a physical change, because it remains wood.
Chemical change
When wood burns it goes through a chemical change.
Is this a Chemical change?
This is an example of a chemical change, as it would be very difficult to
get back to original forms
What happens when bread is toasted?
This is another example of a chemical change.We cannot undo the toast.
Is changing clay to pots a physical or chemical change?
If you said physical you are correct. It is still clay, just in a different shape.
Some elements can be changed physically or chemically.
Periodic Table
Is determining changes all clear cut?
Not at all. Some changes are so minute we must use a microscope to determine the type of change that occurred. Others are easier to determine the type of change. A question to ask yourself is can I change it back to its original state; if not you may have a chemical change.