Activity 1.1

Activity . CAUTION: This Activity needs the teacher’s assistance. It would be better if students wear suitable eyeglasses. Clean a magnesium ribbon about - cm long by rubbing it with sandpaper. Hold it with a pair of tongs. Burn it using a spirit lamp or burner and collect the ash so formed in a watch-glass as shown in Fig. . . Burn the magnesium ribbon keeping it away as far as possible from your eyes. What do you observe? “Facts are not science — as the dictionary is not literature.” Martin H. Fischer