Today we did three experiments to observe some properties of water:
- Can a needle float?
- How many drops of water can fit on a coin?
- Detergent and water, what happens when they mix?
Surface tension pulls molecules together. It’s like a’skin’ that holds molecules together. That’s why you often observe water droplets. A substance called a’surfactant’ breaks this surface tension, you can find it in dishwashing detergent.
By Jaanavi K
5th class
