Title: 6. ELIXIR OF LIFE: A CONTROVERSIAL SUBJECT
Course: Chemist€ry

6. ELIXIR OF LIFE: A CONTROVERSIAL SUBJECT TO DISCUSS AND ARGUE AMONG STUDENTS AND TEACHER (as a moderator)

To end this unit, you will have to solve a huge CHEMIST𝔈RY. Going back to “elixir of life” or the “Legendary potion” in point 1 (Chemist€ry.I). You have two main researches to do:

Activity 6 – GUIDED RESEARCH ACTIVITY

H alf class chose 6.1 or 6.2 questions as a topic to research

6.1 Our rich European ancestors used to drink water from a metal pitcher or vase, since there was no tap water. The richer, the nobler the metal (gold or silver) that stored the water was. The poorer, they drank the water stored into ceramic pitchers but with a gold coin dropped into it. Why people in the past used to add this gold coin into water?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6.1.1 From your research on the previous question, do you think there is any kind of chemical reaction between gold or silver with water? If yes, explain which should be the products of these reactions? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6.2 More recently (even now), gold or silver colloidal suspensions were used before antibiotics appeared.

6.2.1 Look for colloidal suspension definition___________________________________________________________________________________________________________________________________________________________________________________

6.2.2 Search the actual uses of gold or silver colloidal suspensions

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A new clue: ( https://firewaterstar.com/colloidal-gold-benefits/ )

DRAWING CONCLUSIONS IN COMMON

6.3 Argue among your classmates if you think that points 6.1 and 6.2 are related. Justify either both possible answers __________________________________________________________________________________________________________________________________________________________________________________________

6.4 Do you know the difference between pseudoscience and science? Could you evoque one possible origin of “pseudoscience”? Do you think that old Europe contributes in a large way to pseudoscience history evolution?

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