Make Pretty Colors In The Fire
FIRE COLOR-CHANGING COPPER CRYSTALS PKG(3)
Just toss this little pack, unopened, into a wood fire and watch all the pretty colors. (For you chem majors, it contains 25 grams of cupric sulfate, cupric chloride and PVC crystals.) And do we have to tell you not to eat or inhale it? OK, don’t eat it or inhale it. Just watch it blow your mind.