Seasider Posted August 23, 2012 Share Posted August 23, 2012 We are half way through a science experiment only to discover that all the little vials of liquid food coloring are missing from the (now deceptively empty:glare:) box in my pantry! I have gel color. Our experiment is comparing physical & chemical testing - we are dissolving baking powder, XXX sugar, and baby powder into water, oil and vinegar. Last step is to add food color and observe. If I mix a bit of gel color with each of the solutions, do you think that would work? Or should I use something else that I'd be likely to have on hand? Quote Link to comment Share on other sites More sharing options...
Cinder Posted August 23, 2012 Share Posted August 23, 2012 Last step is to add food color and observe. Are you supposed to just add a drop of color in and see how it spreads? If yes then you might want to dilute the gel coloring in some water beforehand or it will stay as a glob. Some of the colors dilute best in hot water. Then you can just dip a knife into the cup and let a drop fall into the solution. Actually, even if you're mixing the coloring into the solution you might still want to dilute it first so it will mix in better. Quote Link to comment Share on other sites More sharing options...
Seasider Posted August 23, 2012 Author Share Posted August 23, 2012 Okay, mixing the gel with a bit of water worked for the water part...now to see about the other solvents (vinegar, cooking oil). Thanks friends!!! Quote Link to comment Share on other sites More sharing options...
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