Mad Science Camp: Slumber Party Science Kit

Good Will online has a listing for a Slumber Party Science Kit.  Someone is a marketing genius, selling a Spa kit as STEM.  The Kit retails for about $10; this listing with shipping is NOT a good buy.  This is the type of fun kit I might buy as a birthday present.  Why not make Spa Science a camp theme?  Here are DIY mask recipes—oops!  I mean experiments.  Here are instructions for soap crayons, bubble baths, bath salts, bath bombs, sugar scrub, hair spray, and lip balm.  Are you doing Camp with a family group?  Test several recipes and start saving cute jam jars.  Make notes of the best results.  You can make up bath salts or sugar scrubs late next Fall for presents.  Most homemade recipes will last one to three months.  Bath bombs are finicky to make and can require several trials and tweaks.  Can you grow and dry your own herbs to add?  See?  I told you I was not strict when it came to Camp.  Your kids will be doing all kinds of experiments to make perfect blends—remind them to change one variable at a time to understand what to tweak.  Yes!  This counts as science;  this bath bomb lab is evidence.  Bonus points if your kids look up the chemical formulas for Epsom salts, citric acid, baking soda, and sugar.