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She would like to put two liquids with different viscosities and with different colors in a plastic bottle so that, when shaken, it will turn to the color of the mixture but will separate out again into the individual colors. For example, she would like to have one liquid yellow and a second one blue so that when shaken, the mixture turns green. After some time, the liquids would separate and return to their original colors until shaken again. She saw such a mixture in a store a few years back but was not teaching at that time and she can't find them again. Any help would be greatly appreciated.

2006-08-27 13:58:05 · 4 answers · asked by Kojack 1 in Science & Mathematics Chemistry

4 answers

My son's class did something like that a few years ago. They put colored water and colored vegetable oil together in a clear bottle and when you shook it the colors combined then eventually separated again.

I guess you could use mineral oil too instead if vegetable.

2006-08-27 14:06:17 · answer #1 · answered by Anonymous · 1 0

A simple demonstration polar and nonpoloar solutes and solvents may be made using a clear plastic bottle, yellow cooking oil, water, and food coloring. The dye components in many food colorings are polar and would rather stay dissolved in water rather than in nonpolar cooking oil. Therefore one can make a bottle half-filled with oil and half-filled with water and food coloring. When the bottle is shaken the two layers temporarily mix, yielding a different color (ie. yellow and blue combine to make green - a good illustration of color mixing). The bottle cap can be superglued or epoxied to the bottle to keep the contents in the bottle. Bottles of this sort have been used at day care centers for years

2006-08-27 14:12:01 · answer #2 · answered by rologirl 1 · 0 0

Try a basic are class color wheel or sample palette - that takes the primary colors and puts secondaries in between. Draw a pie chart with red yellow and blue evenly spaced and in between put the secondary colors they make. If you get red, yellow and blue paint the kids can mix this themselves. You an use water colors or egg die (watch the clothes) For what you want you need two things off different consistency - a water based versus an oil should do it. Just be aware that what looked good in the store may have been toxic if broken, and things you shake - well its hard for all the kids to see, and it might get broken around kids. Really, consider a color chart for safety reasons alone. If you want the hands on let them paint and guide them in mixing the paint. There are plenty of nontoxic, clothes friendly paints and everyone can do it at once.

2006-08-27 14:14:22 · answer #3 · answered by kazak 3 · 0 0

if you use yellow vegetable oil and blue water it will work well. just use regular food dye and it will work splendidly

2006-08-28 06:16:33 · answer #4 · answered by shiara_blade 6 · 0 0

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