we chose vinegar alcohol oil and physical properties. we chose vinegar because we wanted to see if it wold fizz. we chose alcohol to see if it would change any. we chose oil to see if it would reject it. we wanted to see if it closer.
I chose purple, green and red for the powders that I think that are mixed together green was the only one that had stanch in it. we chose red because it looked a lot like the mystery's powder. the purple powder floated.