Mrs. Charles filled a balloon with air. She tightly tied the balloon so no air could get in or out of the balloon. She kept the balloon in a warm room. An hour later she put the balloon in a cold freezer. When she took the balloon out 30 minutes later, it was still tied tightly shut. No air escaped form the balloon; however the balloon had shrunk. Mrs. Charles wondered if the mass of the balloon (including the air inside it) had also changed.
What do you think? Is the mass the same or less than? Give examples, try it out, research on line. Remember Wikianswers is not a valid scientific website!
Anyone with the right answer and a GOOD explanation will get a pink free sit pass!
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ReplyDeleteThe balloon did not lose any mass because no air was lost. The molecules just slowed down and moved closer together. :)
ReplyDeleteI agree with you
DeleteDavid you are right because I looked it up on a fun science website.
DeleteYou are right I googled it and got the same answer.
DeleteI agree because if no air was lost no mass was lost.
DeleteI agree because no air was lost,but the molecules were starting to move slower .
DeleteI dont think the mass changed because no air was lost from the balloon only its shape was changed
DeleteI agree with David
DeleteI do not think the mass of the balloon changed. I did some reasearch and it said the balloon will get smaller and the volume will decrease but the mass would stay the same since you are not putting more air in or taking any out.
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ReplyDeleteI think it shrunk because in an air balloon for example gets big and floats in the air with hot air and in the cold it shrunk cause the cold air probably squeezed the some of the air out
ReplyDeleteRemember,weight and mass are two different things. The particles are basically the mass and no particles let out. It just packed close together.
DeleteI think that the balloon didn't lose any mass because it didn't lose any air, it just shrunk I also did some research on it.
ReplyDeleteI agree that the balloon didn't lose any mass because I did some research and it said that in the cold the molecules will move slower so the molecules are just packed more tightly together so the balloon was smaller.
DeleteI think the the balloon did not lose any mass because i did some research and it said thatif no air came out then the mass did not shrink or increase.
ReplyDeleteI did some research and found out mass of an object does not change unless the object changes. So, I think, since the object (the balloon) did not change and the air inside it did not escape, the mass stayed the same. It was smaller because the air inside the balloon was colder and colder air is more dense. The particles are closer together. Thats why the ballon is smaller.
ReplyDeleteI think that the mass stays the same.
ReplyDeleteAs no air escaped there was no change in mass.
ReplyDeleteThe mass of the balloon stayed the same because the mass only changes when the object undergoes a chemical change. The cold from the freezer put less air pressure on the balloon and it shrunk. But even though the molecules are packed tightly together, no mass lets out of the balloon. There is still the same amount of molecules.
ReplyDeletei think the ballon did not loose any mass because the freezer is cold the molecules do not move as fast so they do not really produce heat and heat is what makes the balloon bigger so i think i still weighs the same.
ReplyDeleteI did some research and found that it doesn't change the mass or the air
ReplyDeleteso I think that the balloon was in different temps so fast that the balloon got smaller.So I think nothing changed mass didn't change or the air didn't
change.
I think that the mass changed because it was in a warm room,and then a cold one.I think because of the temputare changing for a certian amount of time changes the mass because of the temputare . Also about the size thing I think the size changed because of density,and how dense it was in the warm room,and then less dense in the cold room.
ReplyDeleteI went on www.ask.com and they said when you put a balloon in the freezer it will deflate slowly because the molecules will slow down. The balloon will not loose any air and the mass will not change.
ReplyDeleteI think that the air did not change because it cant the balloon is still cloused I think that the aair molucuels just shrunk and skised together kind of like when a liquid turns into a solid.
ReplyDeleteI think that the mass did not change beacuse the air molecules cant get out of the ballon i think why it shrunk was beacuse the warmness heated the baloon and then it whent in a cold area and i think thats why it shrunk but i dont think the air changed at all beacuse no molecules can escape the ballon unless the baloon pops plus the mass only gets out if a chemical change happens and that is almost impossible
ReplyDeleteI think the mass will be the same because no air gets out. The cold air just makes the molecules move slower, so less movement means the balloon shrinks.
ReplyDeleteThe air didn't come out so I think the mass will be the same.
ReplyDeleteI think the mass will not change because the air did not escape however it shrunk but that did not change the mass.
ReplyDeleteI think no mass has escaped they are still in there just it srunk some.
ReplyDeleteOkay, the ballon shrunk because when it was heated, all the particles started moving around causing the baloon to expand. When it was left in the freezer, all the particles started moving towards each other so THAT made it shrink although the mass stayed the same. A example is of thinking that you and your friends are particles of air inside the baloon, if the floor or rubber was heated up. you and your friends would start moving around asking for more space to run. When you are beeing frozen, you and your friends are cold and come together to mantain the heat, and all the space left over will shrink:)
ReplyDeleteI went website called sciencenews.com and it says when heat up a balloon then freezes and it shrinks and it says it shrinks because when the balloon is heated up the molecules started to move around and when the balloon is frozen the molecules go towards each other and that's why it shrinks. When the balloon shrinks, the balloon's mass does not change.
ReplyDeleteI went to that website too.
DeleteI think it shrinks because it was frozen.
ReplyDeleteI think the balloon lost no air but the atoms where not moving around so it got smaller like Mrs. Charles said earlier it is like girls on the playground when its cold they hudle together to get warm but when its hot they spread out and run around like hot atoms in a balloon.
ReplyDeleteI agree with you.
DeleteI think the balloon's air atoms just are moving less so the balloon shrinks. So the balloon expands a little bit because the atoms in the air are moving faster from the heat. I think the balloon keeped its mass.
ReplyDeleteI think the mass would stay the same because the ballon just changed in size.
ReplyDeletei think the mass is the same because if no air was sucked out of it then it
ReplyDeletewas the same form.
I think the air outside affected the air inside the balloon so cold air shrinks so the balloon shrinks
ReplyDeleteI did some research on wikipedia and it says " the law of conservation of mass, also known as the principle of mass/matter conservation, states that the mass of a isolated system [ closed to all transfers to matter and energy]
ReplyDeletewill remain constant over time." so i think that the mass of the balloon will not change. EX- a soccer ball weighs the same amount cold as hot, because you did not let any air out.
I think that the mass did not change at all but, the volume did. Hot air expands and cold air contracts.
ReplyDeleteI think that the ballon lost no air the atoms inside the ballon just slowed down and moved closer together. Like the girls at the playground. I have another example: when the molecules are hot at a dance party they are moving fast like ZUMBA but when it is cold they slow down as if they were playing a slow song.
ReplyDeleteThe balloon would still have the same mass because the only thing that changed was just the size and shape. It may look like it lose mass(which is gas), but it didn't. When Mrs. Charles said she tightened the balloon so no air would come out, that evidence there tells us that the mass has to be in there. There is no way that the mass in there can get out since it is shut tightly. I did some research online and it says that when the helium in the balloon is heated, the air expands. When it gets cooler, it's the opposite. Then it shrinks, BUT, it still has mass in it because of the tightened balloon that won't make the mass escape. :-)
ReplyDeleteI did some research and I found that if you put a balloon in a freezer it will start to deflate because the molecules slow down. The Mass will not change. The balloon did not free any air . .
ReplyDelete<> <---- hehe made this for no reason :D
nooooo my . .
ReplyDelete<> did not work ;(
did not work that time either :(
ReplyDeleteThe mass will not change because if you put a balloon in a freezer or any cold places the molecules will just slow down. Also none of the air got out of the balloon.
ReplyDeleteIn the question itself it says the balloon lost no air, so I don't think it's mass changed. I did some research, and I found that when air heats up, the molocules move faster and need more room to move so they spread out. Cold air contracts like the girls on the playground. This is also why hot air rises, and cold air sinks because since all the hot molocules are spread out they are less dence than the compact, slow-moving, cold molocules. So, just because they're more spread out, or more compact, The mass does NOT change.
ReplyDeleteNot to be mean but Sarah you spelled molecules wrong.
DeleteI think that the mass wouldn't change the molecules would just slow down. I also did the experiment and then when I left it out it went back to it's original size because the mass had not change. It is like that girls on the playground example Mrs. Charles said, " They get compact when its cold and spread out when it's warm."The reason I left the balloon out is because on www.ehow.com it told you that the balloon would expand back to regular size.
ReplyDeleteI think the ballon lots no air becase i learend this last year
ReplyDeleteI think the mass didn't change and I think it shrunk because of the temperature differences.
ReplyDeletei think the ballon did not lose any mass because no air was lost in the freazer of warm room i think it srunk because when it went from hot air to cold air the ballon lost its heluim inside of the ballon because when hot air and cold air attract each other a storm cold possibly happen!!!:)
ReplyDeleteI do not think the balloons mass changed at all. Nothing about the ballon changed except for its size. An object's size does not change its mass.
ReplyDelete:0
Hi Ms Charles sorry that I'v been missing class I had a stoumach bug.I dont think the mass changed.I think that the balloon shrunk because it was in the freezer and the freezer is cold.So the molicules hudled closer together like peinguins in a very cold storm to preserve heat so thats why the balloon srunk.
ReplyDeleteThe mass of the balloon did not change at all because the air is still in there, but the molecule speed has slowed down because of the cold temperature.
ReplyDeleteI don't think the mass changed I think the molecules just slowed down so the balloon shrunk.
ReplyDeleteThe Balloon shrunk because the molecules have become closer together like the girls do on the play ground when its cold outside so the molecules have gotten closer together
ReplyDeleteI think the mass did not change because it does not matter if you put the ballon in a warm room or in a cold freezer. It does not matter what the temputaure is the mass will stay the same because it could be below freezing point and the mass would stay the same.
ReplyDeleteI think the mass stayed the same when it was it was hot the molecules spread out but when it was cold the molecules tightly packed together.
ReplyDeleteI think the mass stayed the same because it got warmer and that is how it shrunk and let the air out
ReplyDeleteCold air takes less space than warm air. If you cool a ballon it will shrink, if you heat it it will expand. You still have the same amount of air in it, the only thing that changes is how much space it takes up. Condence means that something turns into a liquid, but the air don't. If you see droplets inside the ballon it is because of the water you exhale when you inflate the ballon (if you inflate the ballon with a bicycle pump no water gets in and no drops form).
ReplyDeleteIt is possible to calculate how much it will shrink or expand depending on the temperature. If you use celsius you can do it like this: (Temperature in fridge + 273) / (Temperature from start + 273) x 100% = percent of original size.
example:
A ballon is inflated at room temperature (say 20 degree celsius) and then placed in a refridigerater to cool down (say 8 degree celsius). The ballon will then be (8 + 273) / (20 + 273) x 100% = 281 / 293 x 100% = 95.9%. The ballon is 4% smaller, hardly visible in other words. If the ballon is left in room temperature, it will warm back up and get its original size back.
This is what I found on the internet at www.balloonsciencequestions.com it basicly tells you that if you put a balloon in a hot room then a cold room the it WILL shrink but it will NOT lose the mass inside of it.
-Jessica Bucek :-)
did you copy and paste????? im just wondering because thats a lot of information!!!
Deleteyes i did it would take me like a hour to type all of that!!!!!!!!!!!!!!!!!!!!!!!!!!!! SKYLAR
DeleteI think it will have less mass
ReplyDeleteThe balloon will shrink or it will become very small. Since the speed of molecules has decreased they move very slow and come closer ...
ReplyDelete(answers.yahoo.com/question/index?qid=20080125103015AA7pxvy)
So When a balloon is inflated, the amount of air it holds is its volume. ... The air will shrink in the colder environment, reducing the volume and air pressure. ... When the air in the balloon heats up, it expands as the molecules move farther apart.
(www.ehow.com)
I think it's less than because the air pressure is reduced
The balloon grew bigger than smaller, because in hot air the molecules spread apart, in the cold air the molecules come together
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ReplyDeletethe balloon did not loose any air. I did the experiment and that happened to me but I knew that it was just the molecules that slowed down (it did not change its mass ether).
ReplyDeleteThe mass probably didn't change because none of the air escaped and when it's cold, the molecules stop moving as fast around everywhere and went slower. When the molecules move around quickly, they bounce around everywhere. When it's cold, the molecules don't bounce around as much and they go more in the center than the outside of the ballon like when concrete cracks.
ReplyDeleteI don't think the balloon lost any mass beacuse there was no air escaped but the molecules slowed down when the balloon hit the cold air.So the molecules sort of crunched together and the balloon shrunk.
ReplyDeleteAll compound have many different atoms that vibrate. as u increase the temperature of the compound the atoms get more and more excited and therefore vibrate and move more vigerously. this allows them to move further apart and therefore fill a larger area. on the other hand if u cool a compound down the particles becomr less excited and take up a smaller area. the cold balloon is a perfect example of this. Helium gas is lighter than air. The balloons when filled with Helium or hydrogen gas, tend to deflate quickly than normal air balloons because the air pressure outside of the balloon makes the helium balloons deflate quicker. You must also have noticed that the mouth blown balloons remain as they were as long as you don't deflate them yourself, or they get a hole in them so yes the balloon did lose mass.
ReplyDeletei got this from some of my dad some of wiki and some of my sister but i did most of the work
DeleteI think the balloon lost mass because the cold air in the freezer made the balloon shrink to a smaller size. The air in the balloon was more then likeley room temperature and when you left it in the freezer it lost some of its mass.
ReplyDeleteI believe the balloon lost no air, just the mass changed. I remember in Hands on Science, fourth or fifth grade, we learned how when air heats up the molecules move around faster and they become more excited.
ReplyDeleteBut when the temperature drops down, the molecules slow down. I think when the molecules slowed down, the mass went down. So, the balloon shrunk.
It may have lost a little air because it reduced afterwards
DeleteThe balloons mass changed because the molecules woul slow down because of the tempature.It's so cold, the molecules pack together. Packed molecules are sqweezed together.
ReplyDeleteThe mass inside the balloon did not change! When you froze the balloon the molecules got packed together tightly just like you said about the girls at recess when the hug when it is cold. Here is an example: when byou freeze water the molecules get tightly packed together. However the balloon shrunk becuase the molecules got packed together and the balloon shrank.
ReplyDeletei think the cold air shrunk because the air particles stopped moving so much so the cold air de-expanded.
ReplyDeleteI think the balloon got smaller because the molecules got packed up together,but the air inside the balloon did not escape from the balloon. I think the mass is still the same because the molecules are just packed together. For example like when you freeze a liquid. I got my answers from ask.com
ReplyDeletei did some research and found out that the mass will stay the same because even when the balloon got smaller it was just because the molecules packed together when it was in the freezer and I remember what Mrs. Charles said that molecules are just like girls when they are cold they pack together to get warmer also when I researched it it also said that inside the balloon there will be drops of frozen liquid
ReplyDeleteThe mass will not change, because no Air escaped. The Molecules only pack closer together and it shrinks.
ReplyDeleteI agree the molecules only pack and shrink.
DeleteThe mass doesn't change and volume is changed because air doesn't go away and volume is proportional to temprature.
ReplyDeleteThe balloon lost mass because the air condensed,so the volume was reduced when it was cooler.
ReplyDeleteI belive that no mass was lost, b/c no air was lost, thus there really is no possible way for the balloon to have lost mass! The tempature in the freezer is cooler than that of the balloon and since the temp. makes in colder in the balloon, the molecules move much closer together. We learned @ the beginning of the year that the colder it is, the closer the molecules are packed together and the hotter it is, the FARTHER the molecules move away from each other.
ReplyDeleteI think that the cold freezer made the ballon shrink becuas the freeze froze the air
ReplyDeleteI think the hot air made the air in the ballon become how then expand, then the cold air pushed down and pulled the ballon since the other cold air outside of the ballon is pushing down too! then the ballon stayed shrunken.
ReplyDeleteI think that the freezer made the balloon shrink because the air in thecold room is more likely more dense and the air from the balloon is more dense so that makes the balloon shrink.
ReplyDeleteThe mass stays the same and the molecules get closer together, that is why it shrunk.
ReplyDeletei think in the warm room it expanded because of the molecules and when the balloon was cold the molecules got closer together
ReplyDeleteI think the balloon did not loose any mass. It got cold and the molecules scrunched together and shrunk. Hot air expands and cold gets clumped together!
ReplyDeleteI think that when it got warm the molecules moved faster and the balloon expanded but when it got cold they moved slower and the balloon got all shriveled up.
ReplyDeletethe ballon did not loose any air its molecules in side it slowed down and got more compacted together
ReplyDeleteBecause no air escaped from the balloon, the mass did not change either. This is because if an area gets colder, the air molecules inside the balloon got all tight and close to each other, so the balloon shrunk. This whole process works sort of like girls in cold or warm days : )
ReplyDeleteI agree with you guys that the the balloon didn't loose any air because it said that the balloon did not loose any air it just shrunk and the molecules got squished together in the freezer.
ReplyDeleteThe balloons molecules got squished together because in the freezer the coldness packed the molecules together and the balloon shrunk.
ReplyDeleteThe mass does not change because air does not escape but the molecules in the balloon slow down due to colder weather which makes it shrink. I figured this out by researching it on the internet.
ReplyDeleteThe ballown did not lose mass because when mocles get coldeer the slow down and the get tirghter together.(mine):) :) :) :) :) :)!
ReplyDeleteIt will shrink & will have drops of frozen liquid inside . With the removal of hot air,the ballon becomes denser so it occupies less space...
But the balloon would decrease in size due to the fact that the gas particles in the air are getting colder and therefore increasing in density but decreasing in size. The opposite effect of hot air expanding and rising.(ansers.com)
The balloon does not loose mass because in a hot climit the molecules speed up and expand and in a cold climit the molecules slow down and pack closer in together to make the balloon smaller.
ReplyDeleteI saw on a site that the balloon shrunk because the gas molecules compacted shrunk the balloon
ReplyDeleteThe balloon got smaller because when the balloon/air is hot the molecules speed it just like girls on a warm day and when the balloon/air is cold the molecules move really slow like girls on a cold day so the faster molecules take up more room to make the balloon bigger and the slower molecules take up less room to make the balloon smaller that is why the balloon changed its size but didn't loose any air
ReplyDeleteI don't think the balloon lost any mass because when Mrs. Charles put the balloon in the warm room the molecules spread out and moved fast just like the girls on the playground. But when Mrs. Charles put the balloon in the freezer the molecules started to huddle together and started slowing down just like the girls on a cold day. So, I don't think the balloon lost mass the molecules just huddled together to make the balloon shrink.
ReplyDeleteI went to wikipedia and talked to my dadaboutit to figure that out. :)
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ReplyDeletenevermind my last one........ the mass stays the same but they are just closer together in the freezer but they expanded in the warm room o the balloon got bigger than when it was in the freezer so my answer i the mass stays the same
ReplyDeleteI think the warm ballon is greater than the mas of the cold ballon because the air is all gone so the part of the mass is to.
ReplyDeleteI think the mass is the same it is like what you said with the girls when it is cold they cuddle so what I am trying to say is the molecules are together.
ReplyDeleteSearch charles law stating in a constant pressure and mol the change in volume is directly proportional to the change in temperature
ReplyDelete