MadSci Network: Chemistry |
Mad Scientists: My students did the following activity and came up with some hypotheses. Would you please comment. We had three cups of water.One cup of salt water,one cup of plain water, and bubbley water and put two drops of blue food coloring in each one. Ryan Kettner age 8 The bubbly water is blue first because the bubbles spread the food coloring. Ryan Erickson age 8 The salt water is like a shield and holds the food coloring for awhile.Cody Law age 8 1/2 The plain water does not have bubbles to move or salt to hold it so the color just drops down. Brittany Huber age 7 1/2 Annette Hinrichs z0200004@idptv.idbsu.edu Second Grade Teacher, Chief Joseph Elementary 1100 East Chateau Meridian, ID 83642