The Fastest Ball Challenge
Students are to perform a simple experiment involving the rolling of a metal ball bearing down an inclined plane and measuring the time it takes to travel the horizontal track.
Extraction of Caffeine from Beverages
Caffeine is an example of a type of organic weak base called an alkaloid. It is a stimulant and is naturally found in tea, coffee and kola nuts. Other examples of alkaloids include cocaine (a drug of abuse), strychnine (a poison), morphine (a pain killer), piperine (found in black pepper) and quinine (used to treat malaria and added to tonic).