Mrs. Juan is heating a pure liquid on a stove. She records the temperature a minute after the liquid starts to boil. After 20 minutes of boiling, she records the temperature again. When Mrs. Juan compares the first temperature with the second, what do you think she will find?
Explain your thinking. What "rule"or reasoning did you use to select your answer?
If someone has already left a comment please read and either agree or disagree. Provide an explanation for your answer. If you are having computer problems you can pick up a paper version of this question from class. This counts as your weekly homework!
Disagreeing respectful is perfectly acceptable!
Prompts are based on the book uncovering student ideas in science by Page Keeley and Joyce
I think that she well find out that the tempeture rises.
ReplyDeleteI agree! I think it would make complete scence that the the tempeture will increase the longer the water boils
DeleteI think the temperature will rise because it is over a long amount of time.
ReplyDeleteBut remember Blake, the boiling temp never changes(depending on the liquid).
Deletei think the tempature will rise but the boiling tempature always stays the same 100 celcius
DeleteI disagree Paul because remember the boiling temperture is always a 100 degrees celsuis. When it's 20 minutes later, it will stay the same as usual. :)
DeleteActually Meggie it asks to compare the temperatures it says nothing about boiling points so I think whe she records the temp after 20 min. she will find that it has risen because it had a longer time to heat up than one minute.
DeleteI agree with you Michael. Sure, the boiling point is 100 degrees Celsius but it needs needs to be at least 100 degrees C. If it goes higher than 100 degrees C, it will still boil. So I think the tempature will change.
DeleteOops... Sorry I reread the question and thought it over again. The temperature will stay the same because 100 degrees C is the boiling point for water, and if it goes over 100 degrees it will turn into steam (a gas). So I think that the temperature will stay the same.
DeleteI agree with Rachel the temperature will stay the same :)
DeleteI agree with Michael because if you put a metal spoon in it the first time (we all know metal is a conductor), it would most likely be cooler.
DeleteI think the temperature in the water will still stay the same
Deletebecause when the water starts to boil, it will be 100 degrees Celsius and the water will become that temperature too. After 20 min. the temperature of the water will still be 100 degrees Celsius.
I think the tempeture in the water will stay the same consedering that the noiling temp. will never ever change from 100 degrees celcius.
DeleteWater can go over 100* It will just boil faster!
DeleteI think the temperature will stay the same because the temp wouldn't rise if it just keeps boiling at the same temp.
DeleteI think the water's temp will be higher as long as there is still water left in whatever container she used.
DeleteMy dad just told me that I was wrong and he studied a lot of chemistry. The water's temp will just stay about 100 degrees celsius unless you change the air pressure in the room Mrs. Juan was heating her water in. :D
DeleteI think it will rise until it is 100 degrees celsius because it is 100 degrees celsius
DeleteI agree because it has been a longer amount of time :-)
DeleteOnly the boiling POINT stays the same (100 degrees C), but the temperature it boils AT can change. So I think first temperature will be less than the second temperature.
Deleteit will go over 100*C but the boiling temputure will never change
DeleteSince the boiling temp stays the same, I think she will find out that the temperature will force more bubbles. But it also depends on the liquid. Water would stay at 100 degrees C, but other liquids would probably have a different boiling point.The reason is because the more it boils, the more bubbles it will force.
ReplyDeleteI agree with Ali water will always boil at 100 degrees celsuis
DeleteI also agree with Ali and Remi water always boils at 100 degrees celcius so it should stay the same
DeleteI agree with you Izzy because when the temperature is at 100 degrees it stays the same.
DeleteI think the temperature will stay the same regaurdless of how long it is boiling. A boiling point is at 100 degrees celcius, so the temperature stays the same. The story says the water or the substance is boiling so it is at 100 degrees celcius and it stays the same temperature
ReplyDeleteI agree with you
DeleteI agree....
DeleteBecause the water is at its boiling temp. Its 100 degrees c
because even if sits there for 14 hours it will still be at 100.
Taylor in order to get credit for this homework you must explain why you think that ...
Delete(saying in the nicest voice possible)
I agree with Ashley the temperature wont change
Delete#1 if it boiled for 14 hours it would be gone by then. #2 Yes. The boiling point doesn't change, but the water can still go over 100*. It will boil faster. But the laws of physics: A substance can go over its melting or boiling point...
DeleteI agree with you Dawson. But, I hope the water doesn't completely evaporate. So, I think your right when you said that a substance can go over it's boiling poit but, I think we are assuming that Mrs.Juan will only boil the water up to 100 deegres celcius. :)
DeleteShe will find that the temperature is going to be higher.
ReplyDeleteI think it will stay the same also because water always boil at 100 degrees celsius or above. :)
ReplyDelete^
Delete:
:
no matter how long it sits there the boiling temp wont change
I think Mrs. Juan will find that the second temperature is higher because liquids get hotter when they are boiled each minute.
ReplyDeletei agree because the temerature rises when it stays heated longer
Deleteyes. It does get hotter when temperature increases. Its common sense!!!
DeleteI disagree, I think it will stay the same temperature
DeleteI think she will find that the temperature after 20 minutes of boiling will increase.
ReplyDeleteBut I disagree..
Deleteheres why ,
Mrs.Charles told all of us that the water always boils at 100 degrees c. so If the water says boiling or 14 hours it will still be at 100.
This comment has been removed by the author.
DeleteI agree with Daniela because if the water starts out at 100 c as the water sits longer and longer the hotter the water will get.
DeleteI think that the temperature will stay the same, and is the boiling point. Once it is reached, the fluid will change the phase from liquid to vapor.
ReplyDeletei disagree with dan because after boiling longer, the temprature will go higher.
DeleteYep. It will rise its not asking in the boiling point changed like the first question of the blog...
DeleteI think the temp will stay the same because shes turning up the temp the bubbles will only boil faster.
ReplyDeleteBecause the temp rises.
DeleteI agree with you Dawson and Syonn
DeleteYES! YES! YES! see he gets it...
DeleteI think that the answer is that the tempature will stay the same beacuse the boiling tempature stays the same. So she will find that the tempature has not changed.
ReplyDeleteI agree with Carolyn that the temp won't change because when a liquid reaches it's boiling point it will always be 100 degrees Celsius so when Mrs.Juan compares the temp. it would still be the same.
Deletei think that mrs. juan will find that the temperature is going to rise because when the water boils the temperature keeps on rising
ReplyDeleteI disagree because the water will evaporate as soon as it gets to 100'C it will boil so it will evaporate before it has a chance to get to 101'C
DeleteI disagree with both of you I think the temp will stay the same because she isnt turning the dial up any
DeleteKunhoo, when it is starting to go over 100*, it wont disappear it will only boil faster.
DeleteMrs.juan will find that the second tempature is hotter because it was heated longer than the first tempature measured
ReplyDeleteI think that the temperature will stay the same, but liquid will bubble faster
ReplyDeleteWho are you???
DeleteIt is a student... My proof is that is has the "000"
DeleteI PERSONLY tkink the water temreprure will stay the same beacuse the teamputre of the boiling point is the same
ReplyDeleteI think it will stay the same because it will ALWAYS ste same .it may be hotter if you touch it after 20 minutes(which i recomend not to since its very hot)
ReplyDeleteI agree with Franco Grimoldi Calo because water cannot get hotter than 100'C because the water itself cannot go beyond that point. However the pot will get hotter.The water will turn into gas as soon as it reaches that point so it can steam all at once (which is highly unlikely to happen)and steam will come rushing out from the pot.
DeleteI'm continuing from my last one because my dad came in. so my dad told me I have some proof I was right
DeleteWhat I think is that both tempertures would stay the same. Like Mrs. Charles said, the boiling temperture is always a 100 degrees celsuis. As it starts to boil, it's a 100 degrees celsuis. 20 minutes later, it is still the same as always. Comment if you disagree. :)
ReplyDeleteHonestly, Why would it stay the same... Focus people!
ReplyDeleteDawson, maybe you can say that a little nicer. ( I'm saying this in the nicest possible way.)
Delete.........................................................
DeleteHELP!!!! I DON'T GET THIS!!!!!(I am saying 100,000,000,000 things could happen!!!) please help me understand
ReplyDeletei get it now
ReplyDeleteAre you shoure if not this might help you?
DeleteI think that the tampeture will be different after 20 minuts because the water whould of heated up by then.I think I am corect becaus even though the boiling point of water is 100 degrees C the longer the pot of water is on the stove the hoter it will get.I hope you get it because you are very smart.
Might be some spelling arers.
DeleteYes you do have some spelling arers.
Deletewe all can see that
DeleteI think that the tempature will stay the same because the boiling point will always stay the same.
ReplyDeleteI agree with her because the boiling point will stay the same.
DeleteI agree with you to because the water boiling point is 100 degrees C. I think that the temp will stay the same over the time period and the boiling point always stays the same even over 20 minutes.
DeleteI think the tempature will stay the same. Beacause when it is boiling point the tempature stays the same
ReplyDeleteI think it will stay the same because if it is already boiling at 100 degrees celsius than it will not adjust cause it will stay the same cause she wants to boil it at 100 degrees celsius and it will not change the tempature or get hotter in the minutes that pass by.
ReplyDeleteI think that Mrs.Juan will find out that when it is just boiling for a little bit the water wont boil that high,but if you boil the water for 20 minutes longer the water will be really hot,and boiling overboard.Also if it boils long enough the water will evaporate,and there wont be as much water as you started with.
ReplyDeleteI think it will stay the same because Mrs.Juan didn't increase or decreased the liquid.
ReplyDeleteIt will stay the same because it has already reached the boiling point and that is the highest it can go.
ReplyDeleteNo it can go higher, it will just boil faster
DeleteI think the answer is that it will be the same temperature because it doesn't say Mrs.Juan turned the dial higher. So I think that it will stay the same also because the boiling point of water is always the same(100 degrees C).
ReplyDeleteThe temperature will stay the same because there is only one boiling point temperature.
ReplyDeleteThis comment has been removed by the author.
DeleteI agree
DeleteWell it would be very diferent you would need to know at what teameture she put it on and what tipe of liqid it was but it would probable be around 65*F and 120*F.
ReplyDeletei think the temputare went up and when she looked 20 min later she would have noticed the tempature went up
ReplyDeleteI disagree because it never changed
DeleteI think that after 20 min. of boiling some of the would be evaporated into gas, but the actual temperature would not have risen.
ReplyDeleteI agree with Sarah. Mrs. Jaun kept the same temperature on the stove the whole time. When it was at its 1 minute mark it reached its max and will stay the same temperature the whole time.
DeleteI think the temperature will rise because heat is still applied to the pot.
ReplyDeleteI agree with Alec's answer because the temperature will continue to rise as the pot gets hotter.
DeleteIt will stay the same (boiling point has been reached), but the liquid will continue to evaporate.
ReplyDeleteIt will stay the same, but the water will continue to evaporate.
ReplyDeletei think the tempature will rise because it will be oon the stove for a long amout of time and some of ythe wateer will evaporate
ReplyDeleteI agree because the temp will rise when you leave
DeleteI think the answer is C the boiling temperature increased because the longer the water boils the hotter it gets. It gets hotter because the water tempurature goes up.
ReplyDeleteI think that the tampeture will be different after 20 minuts because the water whould of heated up by then.I think I am corect becaus even though the boiling point of water is 100 degrees C the longer the pot of water is on the stove the hoter it will get.Thats why I agree with Alex.
DeleteMight be some spelling arers.
DeleteI think it is A because soon the volume will change because it is evaperating,but that does not change the tempature of the liquid
ReplyDeleteI think that the temp will rise and be hoter than the first temp
ReplyDeletei think that the temp will rise to a warmer temp than the first temp
ReplyDeletei do to i think the temp. will rise even if its at the same temp ,and will evaporate .
DeleteGood thinking! I like all of the discussion. Something to think about. Mrs. Juan is taking the temp of the water. So if the water is boiling...and turning into a gas...Hmmmm.
ReplyDelete**Yes, Mrs. Demeris and Mrs. Juan that is not a good sentence but I don't really want to give away the answer!
I'm starting to think that people either think it is going to disappear when it gets to 101* or it will just stop no matter how hot the stove gets.
DeleteDon't get it
i do too i think the temperature will rise and get warmer than the other temp. I think it will continue to heat over time, and evaporate.
ReplyDeleteYes I agree with you.
DeleteI think that the temp will stay the same it might be hotter but it stays the same temp.
ReplyDeleteit think the temperature will stay the sane because she records the tempeture 1 minuite after the boiling starts to happen and 20 min af†er would be the same because it is already boiling and the boiling tempeture always stays the same at 100c
ReplyDeleteI think she'll find that the temp rose by 100*c (if its water)
ReplyDeleteI think the temperature will stay the same when she checks the temperature.
ReplyDeleteI think the temp. will stay the same because the boiling temp. always stays the same.( depending on the liquid. )
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteI think that the temperature will rise from when she first looked at it from when she checked the liquid 20 minutes after.
ReplyDeleteDo some people think when it passes 100* degrees it doesn't boil anymore???
ReplyDeleteI guess
DeleteThis comment has been removed by the author.
ReplyDeleteIf she doesn't change the temperature of the stove, the liquid will not get hotter when she measures it the second time.
ReplyDeleteI agree because when she leaves the temp is the same
DeleteI chose this beacause ifshe sets the stove for something, it will stay at that temperature.
ReplyDeleteAvatar
ReplyDeleteI think the temp. will stay the same because the boiling points temp. No matter how long you leave it on it will be at 100 degrees celcuis
ReplyDeleteI chose "A" because the dillema did not say that he turned up the dial at all. It does not say that he turned down the dial either. Pure liquids' boling tempatures cannot be changed. Since he is heating it on a stove, there is no reason for it to cool down, since thestove will not die out.
ReplyDeleteI think that she will find that the tempature after will be more hot than in only 1 minute. Because if it has more time to get hotter it will be hotter than in one minute.
ReplyDeleteI think it will stay the same because the boiling temp. is always 100 degrees celcius the boiling point dosent change
ReplyDeletei think that the temputre will stay the same becauseshe never changes the temp. and its 100 degress celcuis
ReplyDeletei mean because she not becauseshe
DeleteI think the temperature will stay close to the boiling point, which is 100 degrees celsius, because the boiling point stays same and will not get higher.
ReplyDeletei agree with Kirby because there is only 1 boiling point so it will stay the same but if she changed the temp. then it would change.
ReplyDeleteI meant to start with a capitol I.
DeleteI think that she will find that after 20 min. the temperature will rise but boiling point will stay the same.
ReplyDeleteI believe that the water will be really hot after the second time
ReplyDeleteI think the temperature will rise because will have been more than 1 minute soooooo ya:)
ReplyDeleteShe will find that the water temperature is much more warmer than 20 minutes ago because as it boils, it continues to get warmer.
ReplyDeleteI disagree because it will change hotter more than 20 minutes.
Deletethe pure liqud will be hotter after 20 mins than when she first tested it a minute after it was boiling..... anyone disagree???
ReplyDeleteI think the water will get hotter because the longer it stays on the stove it will keep heating up.
ReplyDeleteI think you are whrite GOOD JOB!
DeleteI think the temp. will rise because the longer it keeps heating up th hoter it will get.
ReplyDeletei think she will find that the second temperature she took was warmer
ReplyDeleteI think the temperature will stay the same, because once the water temperature hits 100 degrees celsius (boiling point) the temperature stays the same no matter how long you wait.
ReplyDeleteI think the temperature will rise but the boiling point wil stay the same :-)
ReplyDeleteHow do we get a profile pic???
ReplyDeleteI think the water temp will stay the same because once it hits 100 degrees celsius it can't get any higher than the boiling point.
ReplyDeleteI think it will change tempature and keep changeing
ReplyDeleteI think the boiling temperture is the same.
ReplyDeleteI think the boiling temperture is the same.
ReplyDeletei think boiling point will change and keep changing everytime it boils because it will get hoter
ReplyDeletemy choice was c becuase it had to increased and it was boiling for 20 min.after a minute it was boiling
ReplyDeleteI think that she will find that the temperature is higher now than before and nothing else.
ReplyDeleteI think that she will find that the temperature is the same. If the water were to get hotter than 100C or 212F, then it would all turn into a gas.
ReplyDeleteI think that the water temperature will stay the same.
ReplyDelete