Homemade Non-Toxic Glass Cleaner: A Lesson in pH

Kids just LOVE chores, don’t they? Well, this week Mad Science Project is devoted to just that…indirectly, that is. We’re making homemade non-toxic glass and surface cleaner that not only gets those windows streak free shiny but sneaks in a lesson on the pH scale. Enjoy!

You’ll Need

  • ½ c. White Vinegar
  • ½ c. Water
  • ½ c. Rubbing Alcohol
  • 1 TBS Lemon
  • Spray bottle
  • Mixing bowl

You’ll Do
Pour all the liquid ingredients together and mix or shake for two full minutes. Now just pour the solution into bottle and get to cleanin’ some glass!

Mad Science Explanation

pH is the power or percentage of Hydrogen ions in an aqueous (water) solution. pH is determined on a sliding scale from 1 to 14. On this scale, seven is the neutral number. The the higher you go above 7 denotes alkalized or basic substances while the lower you go determines how acidic a water solution is. pH is an important measuring scale in chemistry, biology, oceanography,food science and even engineering! Today’s project uses two acids to make the perfect balance of cleaning agents.

Stay tuned for my  tutorial on how to make a pH indicator our of red cabbages.

Extra Credit: This project is another great homemade gift your kids can give to families hosting birthday, holiday, or team parties. Buy cute spray bottles and decorate large printable adhesive labels for you kids new “line of natural home cleaning products.” Use essential oils to scent your products and a single drop of food coloring to tint your cleaning concoction. A pretty gift tag and ribbon complete the package!

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