Science Buddies: "Ask an Expert"

Ok I have a question people, I need to know what Fluid Absorption means I been looking at every website I can thnk of and I just cant seem to find it any where!

nathalia987 wrote:Ok I have a question people, I need to know what Fluid Absorption means I been looking at every website I can thnk of and I just cant seem to find it any where!

Have you tried looking up the two terms separately in a dictionary?


Louise

o good idea I didnt think of that.but ill check it now..

(ok I researched absoprtion and fluid and I put it together and the last one is what I made up,Is it right?).

absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material.

A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

fluid absorption is a physical or chemical phenomenon substance in which atoms,molecules,or ions enters some bulk phase that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

nathalia987 wrote:(ok I researched absoprtion and fluid and I put it together and the last one is what I made up,Is it right?).

absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material.

A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

fluid absorption is a physical or chemical phenomenon substance in which atoms,molecules,or ions enters some bulk phase that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Great! You are very close.

For example, water can be both a fluid (liquid from the sink) or a solid (an ice cube). The fluid form of water flows. If you pour it in the glass it takes the shape of the glass. Ice doesn't. Your definition above (from the dictionary) just says anything that flows is a fluid. It uses some fancy terms like shear force, but you _know_ what a fluid is, even if you don't kow what a shear force is.

Now, lets think about absorption. Spill your glass of water. You get a paper towel and clean it up. What happens? The water enters in to the paper towel. The paper towel absorbs the water. So, look at your definition-
absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions (water) enter some bulk phase (paper towel) - gas, liquid or solid material.

So, fluid absorption is the case of where the molecules being absorbed are fluids.

Your definition is close, but not quite right... with what I've said, can you re-write it?

Louise

Louise wrote:

nathalia987 wrote:(ok I researched absoprtion and fluid and I put it together and the last one is what I made up,Is it right?).

absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material.

A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

fluid absorption is a physical or chemical phenomenon substance in which atoms,molecules,or ions enters some bulk phase that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Great! You are very close.

For example, water can be both a fluid (liquid from the sink) or a solid (an ice cube). The fluid form of water flows. If you pour it in the glass it takes the shape of the glass. Ice doesn't. Your definition above (from the dictionary) just says anything that flows is a fluid. It uses some fancy terms like shear force, but you _know_ what a fluid is, even if you don't kow what a shear force is.

Now, lets think about absorption. Spill your glass of water. You get a paper towel and clean it up. What happens? The water enters in to the paper towel. The paper towel absorbs the water. So, look at your definition-
absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions (water) enter some bulk phase (paper towel) - gas, liquid or solid material.

So, fluid absorption is the case of where the molecules being absorbed are fluids.

Your definition is close, but not quite right... with what I've said, can you re-write it?

Louise

i cant because like i understand but i understand my definition better so can u break it down for me please?!?

nathalia987 wrote:

Louise wrote:

nathalia987 wrote:(ok I researched absoprtion and fluid and I put it together and the last one is what I made up,Is it right?).

absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material.

A fluid is defined as a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

fluid absorption is a physical or chemical phenomenon substance in which atoms,molecules,or ions enters some bulk phase that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Great! You are very close.

For example, water can be both a fluid (liquid from the sink) or a solid (an ice cube). The fluid form of water flows. If you pour it in the glass it takes the shape of the glass. Ice doesn't. Your definition above (from the dictionary) just says anything that flows is a fluid. It uses some fancy terms like shear force, but you _know_ what a fluid is, even if you don't kow what a shear force is.

Now, lets think about absorption. Spill your glass of water. You get a paper towel and clean it up. What happens? The water enters in to the paper towel. The paper towel absorbs the water. So, look at your definition-
absorption is a physical or chemical phenomenon or a process in which atoms, molecules, or ions (water) enter some bulk phase (paper towel) - gas, liquid or solid material.

So, fluid absorption is the case of where the molecules being absorbed are fluids.

Your definition is close, but not quite right... with what I've said, can you re-write it?

Louise

i cant because like i understand but i understand my definition better so can u break it down for me please?!?

Can you explain your definition to me? The point I am trying to make is that in your definition the bulk phase is the fluid (shear force), but in the correct definition the thing going in to the bulk phase (the molecules or ions) is the fluid.



Louise

so only the bulk phase part is wrong.and it will be the bulk phase is the molecule or ions/molecules and ions?!?

nathalia987 wrote:so only the bulk phase part is wrong.and it will be the bulk phase is the molecule or ions/molecules and ions?!?

fluid absorption is a physical or chemical phenomenon or a process in which fluid enters some solid material. A fluid a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Have you taken chemistry or physics yet? I feel like you don't really understand these terms.

Anyway, to _understand_ this, just go back to water and the paper towel. You have seen this in action; the fluid (water) is absorbed by the paper towel (solid or bulk).


Louise

Hi Nathalia,
For my own curiosity, can you explain how this question relates to your science project? Are you using a procedure that involves "fluid absorption," or did you come across a reference that mentions "fluid absorption"? That information might help the experts here to explain how the processes relate to your work.

Thanks,
Chris

ChrisG wrote:Hi Nathalia,
For my own curiosity, can you explain how this question relates to your science project? Are you using a procedure that involves "fluid absorption," or did you come across a reference that mentions "fluid absorption"? That information might help the experts here to explain how the processes relate to your work.

Thanks,
Chris

it was in my research and i came across it and i wanted to know what it ment just in case my teacher asked me and so i could understand it.

Louise wrote:

nathalia987 wrote:so only the bulk phase part is wrong.and it will be the bulk phase is the molecule or ions/molecules and ions?!?

fluid absorption is a physical or chemical phenomenon or a process in which fluid enters some solid material. A fluid a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Have you taken chemistry or physics yet? I feel like you don't really understand these terms.

Anyway, to _understand_ this, just go back to water and the paper towel. You have seen this in action; the fluid (water) is absorbed by the paper towel (solid or bulk).


Louise

no i havent im jus in eight and we dont have that at our school.but actually i dont understand thats why im asking you for help but not to be rude but if u getting short ov patients wit me i could jus let some one else whos willing to take the time and not catch an attitude and explain it to me n not be like "OMG!!!"

nathalia987 wrote:

Louise wrote:

nathalia987 wrote:so only the bulk phase part is wrong.and it will be the bulk phase is the molecule or ions/molecules and ions?!?

fluid absorption is a physical or chemical phenomenon or a process in which fluid enters some solid material. A fluid a substance that continually deforms (flows) under an applied shear stress regardless of the magnitude of the applied stress.

Have you taken chemistry or physics yet? I feel like you don't really understand these terms.

Anyway, to _understand_ this, just go back to water and the paper towel. You have seen this in action; the fluid (water) is absorbed by the paper towel (solid or bulk).


Louise

no i havent im jus in eight and we dont have that at our school.but actually i dont understand thats why im asking you for help but not to be rude but if u getting short ov patients wit me i could jus let some one else whos willing to take the time and not catch an attitude and explain it to me n not be like "OMG!!!"

Nathalia,
I'm sorry if you feel I am "catching an attitude". I did not intend that at all. I did not know if you understood those words used in the definition, which is why I asked if you had taken the courses where you would have learned about them. Students post here at all levels, from people in the first grade to students working in college labs. The only way we know what level you are at is to ask. I spent a lot of time trying to explain these definitions to you (and was willing to spend more) and I was afraid you still were not understanding, which again is why I was asking about your coursework. All the experts on this forum care deeply about helping students do well on their science fair projects. If you assume everyone who asks if you understand something is insulting you, you will run out of experts very quickly. Anyway, since you wish, I will no longer reply to your questions. I wish you the best of luck with your project.


Louise

Knowing you are in eigth grade will change how we word things.

Absorption can be as complex or as simple as you need to make it. Without knowing what your project is we don't know what level of understanding is required for your project.

If your experiment involved determining how much of some type of fluid, say tap water, different brands of paper towel will absorb, then what you need to understand about fluid absorption is fairly simple.

You start with a dry solid that contains air (paper towel) and end up with the liquid fluid (tap water) in the paper towel displacing air that was in the paper towel to begin with. What happened to the fluid of interest (tap water)? Part of it was absorbed. For an even lower grade this model is more complex than needed. You really don't have to consider the air that started in the paper towel if you weren't weighing it before and after. In other words, this experiment is actually a fluid displacement experiment but that complexity doesn't matter if you use appropriate measurements.

Now back to Chris's question, what is your project? The important thing is to understand fluid absorption as it applies to your project before you tackle learning how it might apply to anything.

i yhink that u should go tp dictionary .com i think u should also tp ur gmas house

not to sure, im british but might be to do with a prosess called osmosis or in cells active transport. these are for water but seem to be the basis of what ur on about.