More Chemistry for Girls

 Many girls love color.  Try Melting Ice.  I thought this might be lame the first time I did it.  The kids loved melting the ice and coloring it with tempera paint—much cheaper than watercolor paint.  Try melting ice with calcium chloride, Driveway Heat.  Here is the ChemMatters article about Salting Roads.  Ask your daughter how melting ice with salt is Chemistry.  Next is Marbled Rocks.  We did this in Chemistry Co-op class last year.  The kids marbled dozens of rocks. The Science relates to  the density of the nail polish.  I think there may be some bonding between the rock and nail polish, too. Use  clear nail polish and black construction paper to make Rainbow Paper, which exhibits Thin Film Interference.  Sorry, the Rainbow Paper is really Physics.  So cool!  Rock Marbling is similar to Colorful Lather Prints—another hit with girls!  You can reuse the dyed shaving cream to make more cards.  Here are instructions to make alcohol dyes.  Use the sharpies to test Solubility or make Ink Water Prints. Here is an article about dyes,  pigments, and inks.  Here is Chemistry Colors Our World, the 2015 National Chemistry Week pamphlet with more experiments to try.  Have fun!