Did anyone do a science project on immiscible liquids?
918581
No, but I can think of some decent ones.  The most common immiscible household items are oil and water.\n\nDyes or food coloring will preferentially stain oil or water, but usually not both.  You could find one that preferred water over oil, and use the water to "extract" the dye from the oil.  Immiscibility is an important quality that is used in many extractions (see the link below).
252576
I've never tried this or heard of it being done, so ask your teacher if it's safe to try this experiment. Take a balloon that has a good long neck on it and force it into the tab opening of an empty aluminum soda can. Then blow the balloon up as hard as you can so that it expands to fill the inside of the can and forces all the air out of the empty can (which really wasn't empty because it had air in it!) Continue to pinch off the neck of the balloon with your fingers so the air won't come out of the balloon. Now fill up a big tall kitchen pot or the sink half way and turn the aluminum soda can upside down completely into the sink or pan of water until the top of the can and pinched off balloon are partially submerged under the water. Now start letting the air out of the balloon gradually and watch the bubbles come to the surface of the water. When all the air is out of the balloon, it still has atmospheric air pressure inside it which keeps the can from being crushed by the atmospheric air pressure of the air in the room above the water level. So try to pull the balloon out of the soda can gradually while making sure to keep the soda can tab and balloon openings under the water level. Results? Does the can get crushed by atmospheric air pressure? Of course, we always have about 14.7 pounds per square inch of atmospheric pressure at sea level. You may have to experiment with different container types that your teacher says are safe to experiment with and one that had the globular shape of a blown up balloon would allow the air to be pushed out fully. You should wear good safety glasses in case any other container (like thin plastic) rather than the aluminum container shatters in the process of imploding.\n \nPS,  Using a wider mouth container, like the aluminum soda can with it's top sawed off, you could pull the balloon out quickly even when it was blown up with air. Don't cut yourself on any sharp metal edges though. The metal or plastic container material can't be too strong and thick because it can't collapse easily then under the force of the atmospheric air pressure.
865828
The following link has some good ideas for different projects. \nhttp://www.all-science-fair-projects.com/category0.html\n\nAlso, the following link might help you set up a science fair display board if you have to have one.\nhttp://www.sciencebuddies.org/mentoring/...\n\nA good elementary science fair project is testing the density of various liquids.  All you need is a tall clear glass or vase and various liquids such as... dishwashing detergent, mineral oil, corn syrup, olive oil, water (dyed blue), molasses, or corn oil.  Use at least five different liquids (of different colors... makes the project more attractive) and slowly pour them into the container.  Also, perform the experiment more than once adding the liquids in different orders and note your results.  This project is easy, but it is also very educational and helps to teach the basic concept of density.
288751
http://www.scioly.org/obb/board.php?FID=35\n\nThis is where I get help for such projects.  If you can't find the information, start a new topic and ask your question.  It is a great science project help site!
484923
Could you try the old idea of different types of liquid in a clear glass/plastic tube. Each has a different density, so the heaviest goes to the bottom, the lightest to the top? Cant remember the exact liquids to use, but something dense like oil, then baby oil, water, etc.....the tube can be shaken, but the liquids will always seperate out in layers......
1000766
The low technology approach is to use a densitometer.  This can be as simple as a hydrometer as used in the brewing industry to check for specific gravity (density).  From a measured density and a known volume and if you know the densities of both liquid components of a binary mixture you can work out the relative proportions of each using simultaneous equations and hence the concentration of one in the other.
1013381
This would be an awesome inexpensive experiment. as I believe that it does with respect to the diameter of the bubble gravity attraction should be increased with respect to surface area, however this experiment should be conducted in an environment free from draft and circulating air flow.
30706
test the reactions of different substances in water. like um put in sugar and salt and then say it dissolved. And put in oil and say it freakin stayed seperate or whatever it does
498348
LIQUID-VAPOR EQUILIBRIUM IN BINARY SYSTEMS\nApparatus\nBoiling apparatus with heating mantle and variac (S), 1/100o thermometer (S),\nrefractometer (L), glass beads or boiling chips (S), weighing bottles (D), small\nstoppered vials (D), 250 ml n-hexane (S) and 250 ml absolute ethanol (S).\nOther binary systems which may be investigated are (1) cyclohexane (S)-\nethanol (S); (2) ethyl acetate (S)-ethanol (S); (3) Methanol (S)-ethyl acetate (S);\n(4) isopropanol (S)-n-hexane (S); (5) isopropanol (S)-cyclohexane (S); (6)\nisopropanol (S)-ethylacetate (S); (7) Acetone (S)-cyclohexane (S); (8) Acetone\n(S)- hexane (S); and (9) cyclohexane (S)-2-propanol (S), (10) 1 Propanol-water.\nCONSULT YOUR LAB INSTRUCTOR TO FIND OUT WHICH SYSTEM YOU\nARE TO INVESTIGATE.\nCAUTION: The ORGANIC LIQUIDS are TOXIC and FLAMMABLE! Use all\nnecessary precautions to avoid accidents!\nCAUTION: DISPOSE OF THESE ORGANIC LIQUIDS by placing in the\nWaste Containers provided. DO NOT POUR DOWN THE DRAIN!\n\nAssemble the apparatus with care; consult instructor if you are at\nall doubtful how to put the pieces together. A 3-way stopcock (shown in Figure\n2) is provided as a means of withdrawing samples of distillate and residue at the\nappropriate time. Best procedure is to withdraw distillate first, then the residue.\n\nProcedure\nClean the apparatus by rinsing with a few milliliters of pure n-hexane. Make sure\nvials are clean and DRY and have labels for marking. Add glass beads to flask\n(carefully).\nThere are three particularly important requirements in this experiment.\n• Make sure that the condensed distillate and the liquid residue samples are\ncollected under equilibrium conditions\n• Read the equilibrium temperature accurately\n• Analyze the compositions accurately\nPlace the thermometer in a position near the top and center of the three legs of\nthe first insert as seen in Figure 3. The hole in the second insert should be\nplaced pointed towards the condenser\nPlace 50 ml n-hexane in a flask. Adjust the variac (not more than 100 -110 volts)\nso that liquid boils "reversibly" (very moderate boiling with only very tiny bubbles\nformed) and so that distillate comes over at a rate which will fill the sample tube\nonce every two or three minutes.\nDraw off the first fraction (containing impurities) which comes over and discard\n(use waste container). When a constant boiling mixture is obtained, record the\nboiling point and withdraw samples from distillate and residue into marked vials.\nAdd 1 ml ethanol to the distillate in the flask, obtain equilibrium-boiling, record the\nboiling point, and again withdraw samples of distillate and residue for analysis.\nBoiling points and refractive indices of the distillate and residue are then\ndetermined after successive additions of 0.2, 0.5, 1, 2, 5 and 5 ml of ethanol. The\nrefractive indices are used to obtain the mole fractions of ethanol in these\nsolutions.\nClean the apparatus by rinsing with a few milliliters of ethanol, and repeat the\nprocess starting with 50 ml of ethanol in the flask. Now, however, boiling points\nare to be determined after successive additions of 0.5, 1, 2, 5, 15 and 20 ml of nhexane\nto the flask.\nIn order to construct a plot of refractive index versus mole percent ethanol, the\nrefractive indices are determined for the pure hexane and ethanol and for a\nseries of solutions containing accurately known weights of hexane and ethanol.\nMixtures about 5 ml in volume containing approximately 1 volume of ethanol to 1,\n3, and 6 volumes of hexane are convenient. To obtain a decent standardization\ncurve of refractive index versus mole fraction, a series of 6 to 8 solutions\ncontaining accurately known weights of n-hexane and ethanol must be prepared\nand their refractive indices measured. Only a few milliliters of each of these\nsolutions are required, so do not waste chemicals when preparing them. The\nrequired data for the vapor pressures of the organic liquids are availab
242420
Wow, amazingly my roommate's 10 year old did this experiment for his science project a few weeks ago.  If the still water is hot, it doesn't take too long.  I think it was around 30 seconds for the mix to be complete.  If the water is cold, then it takes significantly longer (if you mean complete diffusion, then it would probably take five minutes).  We stopped the timer when we could not see a significant amount of clear water, and it appeared that the dye had spread through most of the water.  I think it was around 3 minutes (maybe a little more).  We used a cup of water and two drops of dye for each test.  We timed hot water and cold water spreading.
70301
try surfing: all-science-fair-projects.com\nyou select there from different categories..\ni hope you can find one :)
789664
I suggest this:\n\nShow your friend a water drop,\nlets him imagine that this drop is made of smaller, smaller, smaller water drops,\ntake some peas (uncooked) as examples.\n\n(This would be water molecules)\n\nExplain, that water under room temperature is liquid,\nexplain him with the peas that this means that the water droplets\ncan move free around, they can bounce against each other \n\n(this would be molecules behaving on a certain kinetic energy level)\n\nbut when it gets cold than they start to stick to each other form something called a crystal.\n\n(This would be phase-transition between liquid and crystalline state and the work of the van der Waal'sche force. )\n\nYou can show that by gluing the peas together or use a toothpick to stick them together.\n\nWhy they are all to different: because they have so much different possibilities to stick together and form all this different snowflakes.\n\nAnd you can prove that you are right by showing him that a snowflake melts down into a water drop.\n\n(In fact they can only form certain three dimensional structures but he will learn later. If you develop this story over the years you end up in physics/chemistry and chaos theory.)\n\nHave fun ! There is nothing more interesting to see how a child starts to understand the world and you can be apart of it.\n\nThe real explanation you will find here:
450756
That's a perfectly reasonable experiment.  It addresses issues of solubility and phase equilibria.  As long as the project is done in a logical manner (i.e. following the scientific method), it should be a good project.
741925
Here is a project you could do regarding lubricants here http://www.col-ed.org/cur/sci/sci128.txt  or check out the Exxon-Mobil education website http://www.exxonmobilchemical.com/public_pa/WorldwideEnglish/CorpCitizenship/SciEdu/OC_citizen_science.asp or this link for Exxon-Mobil http://www.exxonmobilchemical.com/public_pa/WorldwideEnglish/CorpCitizenship/SciEdu/OC_citizen_science.asp
575510
I found a web site with a lab on how to figure out releative density of a given liquid hope it helps.  It has all the instructions and materials needed listed on the site
1019043
If you go to gofish.com or myspace.com there is a video about this.  Apparently it is a matter of breaking the surface tension.  They used only 2L bottles but I think it will work with other sizes.  Not only mentos and diet coke works, but they used diet pepsi, with same results.  It even works with dropping rocks in the bottle.  It was a really awesome video, it was quite funny.  I suggest checking it out.
986143
We don't, unless we specifically need to.\n\nBut you need to have the same measurements of liquid usually in each experiment.