1. Prior to the flickclip have students discuss what they know about acids and bases.
2. Make a concept map of everything they know.
3. Watch the clip on the neutralizing abilities of acids on bases and add this new concept to the concept map.
4. Experiment idea one: run a simple experiment using acid-base indicators to figure out whether substances are acids or bases. Then mix an acid with a base; checking the pH every few drops with a Universal Indicator until you neutralize the solution to a pH of 7. Don't forget: Safety first!
5. Experiment idea two: Show how to use a solution of phenolphthalein (range of 8.3-10) to find the strength of an acid. Using a calibrated basic solution, measure the amount of base needed to completely react with, and neutralize, a known amount of acid. This would be indicated by the phenolphthalein: in contact/presence of acid it will turn colorless and when in presence of a base it will turn into a pinkish violet color, at < 10 it turns bright orange.