Make your bubble juice. Mix 1 gallon of water with 2/3 cup dishwasher soap. 2. Tape the plastic lid over the end of the flashlight that the light shines from. 3. Turn on the flashlight and hold it so the light shines straight up. 4. Dip your finger in the bubble juice and wet the lid. Put a spoonful of bubble juice on the lid. 5. With a straw, blow one big bubble in the juice to make a bubble dome over the lid. 6. Watch the swirling colors until your bubble pops. 7. What colors did you see. Record this in your data table. 8. Repeat 2 more times.