LawofsimilarshapesAnother demonstration that tricks the audience using small quantities of chemicals already in the vessels that they are unaware of (See Red, white and Blue, Law of Similar Shapes, Beakers, Not Conicals)

Like the Law of Similar Shapes, this uses phenolphthalein and small amounts of acid and alkali to bring about colour changes. A good introduction to indicators

Spell Casting

Spell Casting – Risk Assessment