You will need:
- A large jar
- Hand-washing liquid soap
- Small plastic bottle
Have some fun with any hand-washing liquid soap and learn the science behind that viscous liquid too.
INSTRUCTIONS
- You need a small plastic bottle so that you may easily pour the hand-washing liquid soap in a narrow stream into the large jar.
- So firstly, fill up the plastic bottle with hand-washing liquid soap.
- Next, take your jar and hold it at an angle or ask a friend to help you hold it. The liquid soap should fall off the sides of the jar and not directly to the bottom.
- Keep pouring the liquid soap in a thin stream along the sides of the jar.
- Keep a close eye on the liquid soap as it falls into the jar.
RESULT
It may take a few attempts but eventually you will notice that sometimes instead of falling down the slope like it should, the liquid soap bounces off the side and jumps diagonally in the jar. This is a result of an air stream which is dragged along with the liquid soap as it falls from the bottle. The air stream does not allow the liquid soap to mix with the remaining soap, like it would otherwise, making it jump sideways. This could happen with any liquid. The more viscous and thick the liquid is, the more easily the air stream creates a ramp for the liquid to bounce off.
