5 plastic cups half filled with water 5ml of denatured alcohol, 5ml of cooking oil, 5ml of soy sauce, 5ml of ethyl alcohol, and 5ml of shampoo1 prediction 1 observation 1 explanation
Answer (1)
PredictionEach substance will behave differently in water. Some will mix (miscible), others will float or sink depending on density and solubility.ObservationDenatured alcohol – mixed with water.Cooking oil – floated on water.Soy sauce – mixed with water and colored it.Ethyl alcohol – fully mixed with water.Shampoo – partially mixed, some bubbles formed.ExplanationAlcohols (denatured and ethyl) are miscible with water due to similar polar properties.Cooking oil is non-polar, so it floats and doesn't mix with water (polar).Soy sauce contains water and salt, so it dissolves easily.Shampoo is partially miscible, forming bubbles due to surfactants reacting with water.
