Easy waterproofing experiment

The video tutorial demonstrates an experiment to test the waterproof properties of different materials using plastic spiders and umbrellas made from paper, kitchen foil, and felt. The experiment is conducted by spraying water on each material and observing the results. The foil is found to be the most waterproof, while the paper absorbs water and the felt allows some water to pass through. Additional testing with a plastic bag confirms its waterproof nature. The tutorial emphasizes fair testing by keeping variables consistent except for the material type.

What is the main objective of the experiment with the plastic spiders?

• To find out which spider is the heaviest

• To determine which material is most waterproof

• To see which spider is the fastest

• To test the durability of the spiders

Which variable is changed in the experiment to test waterproofing?

• The size of the spiders

• The amount of water used

• The color of the spiders

• The material of the umbrellas

What happens to the felt when water is sprayed on it?

• It becomes completely dry

• It absorbs the water

• It repels the water

• It changes color

How does the foil react when water is sprayed on it?

• The water is absorbed

• The water stays on top

• The foil changes shape

• The foil becomes sticky

What is observed about the paper after multiple sprays of water?

• It becomes shiny

• It tears easily

• It becomes waterproof

• It remains intact

Which material was found to be the best umbrella for the spider?

• Foil

• Plastic

• Felt

• Paper

What is the result when water is sprayed on a plastic bag?

• The bag changes color

• The bag becomes sticky

• The water rolls off

• The water is absorbed