20 Comments
when a physical change has occurred the object changes but it can be turned back into what it originally was. When a chemical change has occurred the object changes and it can't be changed back into what it originally was. Physical change ex: when a table breaks you can glue it back together. Chemical change ex: when a bike rusts.
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Mr. COnway
3/21/2015 12:39:15 am
Alyssa,
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jeremy
3/11/2015 11:14:09 pm
chemical change is you can change it once but you can not change to it's oorngle form and physical form you can change it and put it back to it's orngle form
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Mr. Conway
4/3/2015 12:25:48 am
Jeremy,
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Mr. Conway
3/21/2015 12:41:15 am
Jeremy,
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Jeremy Beausoleil
3/23/2015 10:58:28 pm
because if you put a orange shrit and you put in the washer with bleach
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Mr. Conway
4/3/2015 12:26:40 am
Jeremy,
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Alyssa Long
3/30/2015 06:26:09 am
Yup. that is true and that is why people don't put bleach in with colored clothes.
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Mr. Conway
4/3/2015 12:27:43 am
Alyssa,
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Emma Kirby
3/31/2015 12:50:41 pm
In a physical change the substance's physical appearance is being changed but not the substance itself, like folding a paper. In a chemical change you are creating a new substance, like burning a paper where you are creating ash from the paper.
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Mr. Conway
4/3/2015 12:29:20 am
Emma,
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Iasia
4/1/2015 03:14:20 am
A physical change is something u can get rid of and bring back chemical change is something that you can get rid of and it won't return
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Mr. Conway
4/3/2015 12:30:42 am
Iasia,
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Axel Quinones
4/7/2015 11:10:24 pm
well if you make pancakes that is a chemical change cause you can never get the egg the floor or the butter back,and if you were to crumble a piece of paper its still paper so it a physical change
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Ratana Ham
4/7/2015 11:12:39 pm
A chemical change can do many things to turn into a new substance like you could notice it by it bubbling up or the change of its color. An example is when you make a pancake, the batter is turn into a new substance like the pancake. Now an example of a physical property is when you rip a piece of paper you still can get it back by taping it.
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ratana
4/7/2015 11:15:34 pm
it is physical change not physical property when you read it. My bad
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Alyssa long
4/15/2015 07:48:06 am
You should put the science words on this website.
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Jeremy Beausoleil
4/30/2015 11:26:21 pm
Mr Conway is the air a chemical change or a physical change?
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aisha
5/13/2015 11:47:21 am
for a physical change just the appearance is different other than that the substance is the same. for example like when water freezes into ice it is still water just in a different form/state.
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Mr Conway
6/11/2015 02:59:25 am
Aisah, Jeremy, Alyssa, Axel, Ratana,
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