Our Monday afternoons we host Science Cafe with our volunteer scientist Shelly. Yesterday we asked, “what happens if you put ivory soap in the microwave?” (Don’t worry, it’s safe as long as you’re careful not to get burned).
It Turns to foam!
When heated, air inside the soap expands and water in the soap vaporizes. These processes cause gases to push on the soap, which has been softened by the heat. Soap that is microwaved can expand to six times is original size!