Create an account
any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance
Law of Conservation of Mass
the fact that matter is not created or destroyed in any chemical or physical change
Name other examples of physical change.
bending, crushing, breaking, chopping, and anything else that changes only the shape or form of matter
Why is the melting of an ice cube a physical change?
A change in state, such as from a solid to a liquid or from a liquid to a gas, is an example of a physical change.
How is hydrogen peroxide chemically changed when it is poured on a cut on your skin?
it breaks down into water (H2O) and oxygen (O2) gas
How does the iron metal chemically change when it combines with oxygen from the air?
iron metal combines with oxygen from the air to form the substance iron oxide, know as rust
How is a chemical change different from a physical change?
A chemical change produces a new substance.
What is another name sometimes used for the Law of Conservation of Mass?
The Law of the Conservation of Matter
Complete the statement - "Every chemical or physical change in matter includes a..."
Every chemical or physical change in matter includes a change in energy.
How are temperature and thermal energy related?
Temperature and thermal energy are not the same thing, but temperature is related to the amount of thermal energy an object has. Thermal energy always flows from warmer matter to cooler matter.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together