Puffy Paint: How To Make Puffy Paint
Young children love learning how to make puffy paint. The squishy-ness and the way it oozes just makes puffy paint an amazing experience for our littlest scientists!
Older students, even those taking high school biology, will learn about ionic bonds, polymers, and cross-linking in this activity. So, this activity can definitely be used with a wide range of ages.
Puffy paint is a fun way to blend chemistry and art. In this activity we provide several templates, but we used the pumpkin template. You can download the template templates below; they include a pumpkin, an apple, and several leaf templates.
Change the colors and use other shapes for different seasons or themes – flowers, insects, Spring, planets, and so much more!
It’s best to use card stock with the puffy paint, but if you have poster board or a piece of card board, you can certainly print the template on paper and then trace it onto the heavier material. (I’m all about saving money and using what we have!)
How to Make Puffy Paint – And a Bonus!
So, we’ve added something fun to our puffy paint recipe. Just add two ingredients and you have slime!
Puffy paint and slime…two chemistry activities and two sensory experiences at one time.
An adult should handle the contact solution and baking powder.
Adult supervision is suggested.
This activity is not suitable for children under the age of 4.
The paint and slime should be kept away from eyes.
- 1 cup foam shaving cream
- 3/4 cup of school glue
- Orange food coloring
- Paint brush or two
- Pumpkin template (or other template if doing something other than a pumpkin)
- Card stock
- Cinnamon stick for pumpkin stem or use a small piece of a stick
- Optional: construction paper
Ingredients for Slime
- 2 tablespoons of contact solution with boric acid
- 1 teaspoon baking soda
- How to make puffy paint – Tools you need: Bowl, spoon, paper towel, paint brush, something to cover your work surface.
What is Happening
This is an excellent activity for teaching older children about ions, polymers, and cross linking.
The glue is made up of flexible molecules called polymers. Polymers are large flexible molecules made of smaller molecules called monomers. These polymer molecules in glue can “slide” by each other, so the glue is a more liquid form.
When the glue in the puffy paint mixes with the borate ions in the contact solution (which contains boric acid and water), the borate ions connect the polymer molecules in the glue. This is called cross-linking. This is what makes the puffy paint take on a more solid form when mixed with the contact solution. The more of the connections made during cross linking, the less likely you’ll be able to dissolve bonds that are formed.
This is why the glue becomes loses its ability to flow and becomes more solid. The bonds between the polymer molecules are strengthened by the borate ions. In fact, The polymer molecules become tied together.
If your student is old enough, this is a good link that explains the cross-linking that occurs in the manufacturing of contact lenses.
Other Chemistry Activities
For younger students:
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