The video tutorial explains the differences between natural and synthetic fibers, highlighting their sources and basic components. It includes an experiment to compare their characteristics, such as water absorption and drying time. The tutorial provides a detailed procedure, observations, and results, concluding with practical tips for conducting the experiment.

What is the primary component of plant fibers?

• Protein

• Cellulose

• Nylon

• Polyester

Which of the following is NOT a natural fiber?

• Cotton

• Wool

• Nylon

• Silk

What is the first step in the experiment to compare fibers?

• Add soap to water

• Measure the drying time

• Spread fibers under the sun

• Take samples of fibers

How much water is added to each beaker in the experiment?

• 60 ml

• 30 ml

• 40 ml

• 50 ml

Which fiber absorbs the most water according to the experiment?

• Polyester

• Nylon

• Silk

• Cotton

Which fiber is known for being elastic and lightweight?

• Polyester

• Nylon

• Wool

• Cotton

What is a common use for polyester?

• Making socks

• Making ropes

• Making bed sheets

• Making dress materials

Which fiber is described as strong and easy to wash?

• Cotton

• Polyester

• Silk

• Nylon

What is a key advantage of synthetic fibers over natural fibers?

• They are more expensive

• They dry faster

• They absorb more water

• They are harder to maintain

What should you avoid adding to the water during the experiment?

• Sugar

• Vinegar

• Salt

• Soap