underwater_fireworks

Underwater_fireworks - Why didn’t the color stay in the oil layer Do you have any questions Explanation Water and oil do not mix and because the

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Underwater Fireworks Time Estimate: 5 minutes Materials: 1 L beaker 50 mL beaker 10 mL vegetable oil food coloring (red, blue, green) spoon water Advance Preparation: Fill the 1 L beaker with about 800 mL of water.  Add the vegetable oil to the 50  mL beaker along with four drops of each color of food coloring.  Stir the oil  mixture thoroughly. Procedure: Stir the oil mixture again and pour it into the water in the larger beaker. Questions to Ask: (Before Experiment) Have you ever seen fireworks over the ocean? Have you ever seen fireworks IN the ocean? (During Experiment) Underwater Fireworks 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What do you see? Why are the colors acting this way? (After Experiment AND Explanation) Was what we saw really fireworks? Where will the color be if we let the water sit for 30 minutes?
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Why didn’t the color stay in the oil layer? Do you have any questions? Explanation: Water and oil do not mix and because the oil is less dense than water, it floats on the surface of the water. Since the food coloring is water-based, it does not dissolve in the oil it was mixed with, but rather remains suspended. Once the food coloring starts separating from the oil, it makes its way through the oil layer and into the water. As the food coloring dissolves in the water, it creates streamers of color or “fireworks.” References: Green, J. The Mad Scientist Handbook, (2000) p. 113. Underwater Fireworks 2...
View Full Document

This note was uploaded on 09/18/2011 for the course CHM 3218 taught by Professor Stewart during the Spring '08 term at University of Florida.

Page1 / 2

Underwater_fireworks - Why didn’t the color stay in the oil layer Do you have any questions Explanation Water and oil do not mix and because the

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online