This kit includes: 3 transfer pipets and pH Paper

Ingredients:

• Transfer pipets (provided)
• pH paper (provided)
• Household liquids such as Water, Bleach, Vinegar, Shampoo, Mustard, Cough Syrup, Orange Juice, Soda, etc.
• Small cups or Foam or plastic coated paper plate(s)

An Acid is any of a class of substances whose liquid solutions have a pH of less than 7 and is typically characterized by a sour taste and the ability to turn pH paper red.  Bases (also referred to as alkaline) are any of a class of compounds whose liquid solutions have a pH greater than 7 and are characterized by a bitter taste, a slippery feel, and the ability to turn pH paper blue.

A liquid with a pH of 7 is considered neutral.  We typically classify water with a neutral pH of 7.  Water is not harmful to our skin or to drink and will not react on pH paper. The further away from a pH of 7, the more dangerous the products can be to your body.

What to do:

• Use the pipets to add a small amount (1/4 ml) of household liquid to each of the cups (or in various spots of the foam plate).  Make sure to identify each substance. Note: you may want to “rinse” the pipet with water between samples.
• Guess if they are an acid, base or neutral based on what you know about each substance: feel, taste or both (DO NOT TASTE THE BLEACH, SHAMPOO OR OTHER HOUSEHOLD CLEANING LIQUIDS).
• Place a new strip of pH paper in each liquid sample and note the color changes if any.