Physical or chemical change?
Penny turning Green
Chemical Change
Name one way you know a Chemical change has occurred, that has something to do temperature.
A temperature change occurs without using heating or cooling equipment, like hot plates or refrigerators.
Ripping paper
Physical Change
Name the way you know a physical change has occurred
A physical change has occurred when it changes but not changing the matter itself
Baking cookies
Chemical change
The difference between a physical and chemical change
Chemical change is when the matter changes, but a physical change is when the matter stays the same.
name one way you know a chemical change has occurred that has something to do with gas.
Gas bubbles, gas bubbles are released this shows that a gas has been made that was not present before.
Burning paper
Chemical change
Change that occurs to matter and a new substance is created
Chemical change
Freezing water into ice
Physical change
Change in size, shape, or state of matter but does not create a new Substance
Physical Definition
Name one way you know a chemical changes has occurred that has to do with color change.
A color new is created that was not present before and was not added by dye