3. Curl your fingers to make an O shape. Soap bubbles are hollow balls of soapy water filled with air. A thin wall of soap pulls in as the air inside pushes out. The wall becomes thinner until ...

Picture tiny air bubbles inside a container filled with liquid ... and industrial applications such as cooling systems, water treatment, and chemical production. Controlling bubble movement ...

A potometer is a piece of apparatus designed to measure water uptake in a leafy shoot. There are 2 types of potometer – the bubble potometer and the weight potometer. The distance the air bubble ...