Move left and right with the arrow keys. Collect water droplets, then move the disk to the right and press space to dispense soap onto it, making the water flow into the bucket. You can hold a maximum of 3 drops on the disk. Avoid the falling soap because it will make you lose your water. Here are some facts about surfactants and surface tension: 1. Surface tension causes water molecules to stick together. 2. Surfactants decrease surface tension, causing water molecules to separate. 3. Surfactants are found in all sorts of things, such as detergents, lotion, soap, shampoo, and more.
This was a prize-winning entry in the House That Engineering Built Programming Contest funded by the Dow Chemical Company and sponsored by UD K-12 Engineering. Sounds are from soundjay.com
