Beakman explains how to create a bouncing egg by putting it in a jar of vinegar for a few days. He says the shell is hard because it's made of minerals and the aceitic acid in vinegar breaks down those minerals leaving behind the rubbery texture.
The Mineral Explorers travel to Najuvan, Spain, the source of pyrite. The explorers discuss one characteristic of pyrite that is hard to believe: its perfect cube form.
Lowly Worm and Huckle Cat wonder about what kinds of gems and metals could be buried under Busytown. They think about the mining process that brings us things like jewels, iron, and more!
Beakman explains what acids are and performs a demo where he puts bone in vinegar for a few days to show that they become rubbery. He uses an animated clip to explain that acids take things apart rather than actually "burn."