2.  Generally (but not always) sour tasting…but we don’t test them that way!  Feel the opposite of slippery (rough?)  Examples:

3.  Donate H +  H + is another name for a “proton.”  The more H +, the stronger the acid.

4.  Generally bitter tasting…but we don’t test them that way!  Feel slippery  Examples:

5.  ACCEPT protons (H + s)  Make OH - (Hydroxide ion)  The more OH -, the stronger the base.

8.  Low pH (0-6) = Acidic  pH (7) = Neutral  High pH (8-14)=Basic

9.  Like the Richter scale (for Earthquakes), the scale uses exponents to tell apart numbers.  7.0 earthquake vs. 9.0 (100X worse)

10.  Something with a pH of 9 (two numbers away from 7), is 100 times as basic something with a pH of 7. Ocean water is basic (pH=8.2).  Something with a pH of 5 (two numbers away from 7), is 100 times as acidic something with a pH of 7. Rainwater is acidic (pH=5.6).

11.  Acid Rain is especially acidic  Because C0 2 from our factories and cars produces carbonic acid, rain is getting more acidic.  This causes significant damage and over a billion dollars a year to fix corroded metal, paint, and damaged plants.

15.  Energy costs us!  YOU can lower the effects of CO 2 by watching how you use energy.