7th October 2005 at 01:00

Which tastes can a blindfolded student detect? Use a drinking straw "dropper" and put small amounts of different solutions on the tongue. Try strong cold coffee, weak solutions of sugar or salt, as well as lemon juice or diluted vinegar. Rinse your mouth out with water between each sample.


Look at plants that we use. Each group researches and presents about one plant's characteristics, adaptations, uses, habitat and impact on the local community. They could include coffee, tea, cocoa, oil seed rape, cotton, flax, rubber, pine and oak.


Students measure their pulse rate before and after a glass of water; repeat using drinks like ground coffee, cocoa, tea and Coca-Cola and de-caffeinated drinks; and compare the effects on heart rate.


Caffeine is a plant alkaloid. Research the sources of other alkaloids (such as atropine, cocaine and quinine) and their effects on the body. Consider the genetic manipulation of coffee and the trials in French Guiana (see the article in New Scientist on May 29, 2005 or visit www.newscientist.comchannellifegm-food)

Subscribe to get access to the content on this page.

If you are already a Tes/ Tes Scotland subscriber please log in with your username or email address to get full access to our back issues, CPD library and membership plus page.

Not a subscriber? Find out more about our subscription offers.
Subscribe now
Existing subscriber?
Enter subscription number


The guide by your side – ensuring you are always up to date with the latest in education.

Get Tes magazine online and delivered to your door. Stay up to date with the latest research, teacher innovation and insight, plus classroom tips and techniques with a Tes magazine subscription.
With a Tes magazine subscription you get exclusive access to our CPD library. Including our New Teachers’ special for NQTS, Ed Tech, How to Get a Job, Trip Planner, Ed Biz Special and all Tes back issues.

Subscribe now