Today we ran our investigations of gobstoppers. People tried out different ideas for the investigations that they designed. They tried different liquids as solvents: vinegar, alcohol, baking soda solution, hand sanitizer, soda, seltzer, and juice. Some of them tried different temperatures of water and some tried using paper chromatography to separate the colors in the food dyes. They took notes, made observations, took pictures, drew pictures, and timed the changes that took place. Tomorrow they will present their results.
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