The video tutorial explores the concept of waterproofing by conducting experiments with different materials such as cardboard, tissue paper, and plastic. The tests involve spraying water to see if it penetrates the material or stays on top, indicating whether the material is waterproof. The tutorial concludes with a summary of the findings, highlighting which materials are waterproof and which are not.

What observations were made regarding the plastic's interaction with water?

What conclusion can be drawn about the roof of a house in relation to waterproofing?