In this iconic Nickelodeon kids science show from the 1980s, Don Herbert (Mr. Wizard) and several children explore and discover what makes the world tick.
ASH MINERALS - Michael holds a piece of newspaper with tongs over a candle. After the paper has burned, Mr. Wizard explains what is left behind are the minerals. MOLD - This invasion can start from one tiny spore, so small it's invisible.
S3E2 25 min
