Yes, we’re still working on the school projects. Last week it was the prison cell diorama; this week we’ve moved on to my son’s animal cell model. This post must have at least some useful information for creative types, moms, and even writers about children with dreaded school projects. In case you’re rushed for time, I’ll get right to a couple of points:
1. You can not glue two pieces of plastic together and expect them to be watertight.
2. Hand sanitizer is flammable.
The above mentioned model could be made of any material. That kind of artistic license can be trouble.
My son thought it would be cool if the model were squishy and lifelike. Our first thought was to glue two circles of plastic together and fill it with gel. I bought a giant bottle of hand sanitizer, and my son gathered up household items like marbles and crayons to make the parts of the cell (try to remember studying things like vacuoles and mitochondria).
He wanted to use modeling clay or silly putty for one part, so we tested how these would hold up in the gel. It turns out hand sanitizer turns both modeling clay and silly putty into a terrific representation of vomit.
Next we discovered we couldn’t glue the pieces of plastic together. I should know this already. I should. BUT (and here’s where it gets fun) you can melt them together with a hot iron.
One sticky detail - we realized we'd have to melt the last part of the circle after the cell was already filled with the hand sanitizer.
Alcohol based hand sanitizer + very hot iron = ?????????
Did you know hand sanitizer has a flash point of 69 degrees Fahrenheit? Don’t worry, we decided not to find out the hard way what would happen if we ran a 140 degree iron over an alcohol based squishy cell. After only a few minor mishaps that required scraping plastic goo off the iron, here’s the water-filled finished product:
Do you think he’ll get extra credit if we donate one giant bottle of unused hand sanitizer to the classroom?