Art in Chemistry
For years we’ve heard that students have multiple intelligences and that we should do whatever possible to help them display their learning strengths using varied instructional strategies. While chemistry can be an abstract and quantitative science, there is much room for students to display their creativity while engaging multiple levels of conceptual understanding.
One of my favorite activities is a simple demonstration in which a small amount of water is heated in a flask until it is boiling, the heat is then turned off, and an inflated balloon is used to cover the opening. As the steam condenses inside the flask, the balloon moves inside the flask, and a vacuum is formed. Eventually, the vacuum is strong enough to lift the entire flask with just the balloon. The best part of this demonstration is what happens next. Students are asked to create a four-panel cartoon in which the molecules of air, water and steam must move and talk to explain what they are doing on the particle level and how that affects what we see on the macroscopic level (the real world). Students then participate in a silent gallery walk offering written commentary on each other’s art. This is a common example of modeling in chemistry nowadays (using particulate models) with a twist. The cartoon elements allow for some pretty interesting scenarios. One of my students decided to describe the movement of particles using a TV sportscaster analogy.
His cartoon correctly explained why the balloon moved inside the flask (he didn’t fall into the “flask molecules are sucking the balloon molecules” trap), and he did so with a deep conceptual understanding in a fun, creative manner.
After the AP® Chemistry exam, I try to engage my students in many chemistry-based projects focusing on their artistic side. For example, after studying electrochemistry, we soak some goldenrod paper in salt water, place it on aluminum foil and use a copper wand connected to a 9-volt battery to create an image using the goldenrod paper as an acid-base indicator (check out the Goldenrod Electrochemistry Kit at teachersource.com). The students achieved some stunning results. My favorite one is of the eye pictured below. This student learned how to use this medium in just one try.
Another lab involved the science of blueprinting. Students soak filter paper in a few solutions and prepare some masking using a paper plate. They cover the paper with their masking and develop the blueprints outside using ultraviolet light from the sun. You’ll find this lab at flinnsci.com (AP6155). Again, some amazing results are obtained using a fairly complex chemical system.
Finally, I have students make Shrinky Dinks® using a non-traditional method. This was a popular toy back in my childhood. It involves drawing an image with permanent marker on a piece of polystyrene plastic and then putting it in the oven on low heat. You watch the plastic curl up in front of your eyes and end up with a smaller, thicker version of what went in. Instead of using an oven, students were armed with heat guns and crucible tongs and had to heat their plastic design slowly and carefully. The curling that takes place during heating is unpredictable and quite insane, but (almost) always ends up in a unique, smaller version of their artwork. (Heat guns and polystyrene sheets can be purchased online by the teacher.) Patience and skill must be practiced and cultivated by the students. Here are a few of my favorite designs.
Hopefully you have been artistically inspired to try out some creative projects with your students this school year. Have fun!
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Shrinky Dinks is a registered trademark of its respective owner and is not affiliated with, nor endorsed by Texas Instruments.