BUBBLES
How Long Will They Last?
BIG QUESTION
HYPOTHESIS
RESEARCH
Water is made up of molecules. They stick together because hydrogen atoms in molecules are attracted to oxygen molecules. This is called surface tension. Surface tension creates bubbles in water. When you add soap the water becomes flexible. When you add soap to the water it relaxes and becomes more stretchy, like a balloon. When you add glycerin or corn syrup to the soapy water it becomes thicker. Water trapped between the layers of soap evaporates and it pops. To put a pencil into a bubble without the bubble popping, the pencil must be wet. The water molecules on the pencil are attracted to the molecules on the bubble and fill in the hole.
Sources
Home Science Tools – Bubble Science Projects
http://www.hometrainingtools.com/bubbles-and-surface-tension-science-projects/a/1508/
Science Buddies – Bubble-ology
http://www.sciencebuddies.org/science-fair_-projects/project_ideas/Chem_p025.shtml#background
Steve Spengler Science – Giant Bubble Experiment http://www.stevespanglerscience.com/lab/experiments/giant-bubble-experiment
MATERIALS
2. purchased Magic Bubbles - 1 cup
3. Dawn Dishwashing Soap - 1 cup and 1 cup water
4. a lid with an edge
5. a straw
6. a watch
7. homemade super bubble solution: 1 cup of dish soap, 6 cups of water, 1/4 cup corn syrup
8. meausring cup
PROCEDURE
Test 1
1. Make the homemade soap .2. Fill the lid with homemade soap solution.
3. Wet the straw and put it in the solution and blow.
4. Slowly pull out the straw.
5. Wet the pencil and put it slowly into the bubble.
6. Time it to see how long it lasts.
Test 2
1. Mix the dishwashing soap with water.2. Fill the lid with the dishwashing soap solution.
3. Wet the straw and put it in the solution and blow.
4. Slowly pull out the straw.
5. Wet the pencil and put it slowly into the bubble.
6. Time it to see how long it lasts.
Test 3
1. Fill the lid with the purchased Magic Bubbles.
2. Wet the straw and put it in the solution and blow.
3. Slowly pull out the straw.
4. Wet the pencil and put it slowly into the bubble.
5. Time it to see how long it lasts.