The Bottle Diver Challenge

Added: 2026-05-05

[00:00:00]What if a tiny ship in a bottle could rise and dive just by giving your hand a squeeze? You need a clear plastic bottle, water, a small sealed air diver like a dropper, oil, and a cork.

[00:00:10]Fill the bottle with water, top with a thin oil layer, insert the air-filled diver, and seal tightly.

[00:00:17]Squeezing the bottle increases pressure, compressing the diver's trapped air so its density rises and it sinks. Release and rise.

[00:00:24]Experiment with different droppers and oils, then share results in the comments [music] while the host invites guesses.