Natural and synthetic

The video tutorial explains the differences between natural and synthetic materials. Natural materials are derived from the Earth, plants, or animals, such as stone, wood, and silk. They can be processed to change their appearance, like tanning animal skins to make leather. Synthetic materials, on the other hand, are human-made and include plastics, foam, and nylon. Some synthetic materials are created by combining natural substances, like steel, which is made from iron and carbon. The key distinction is that natural materials exist naturally, while synthetic ones are manufactured.

What is the main difference between natural and synthetic materials?

• Natural materials are always more expensive than synthetic materials.

• Natural materials are found naturally on Earth, while synthetic materials are created by humans.

• Synthetic materials are always stronger than natural materials.

• Natural materials are man-made, while synthetic materials are found in nature.

Which of the following is an example of a natural material?

• Plastic

• Nylon

• Silk

• Foam

What process is used to transform animal skins into leather?

• Weaving

• Molding

• Spinning

• Tanning

Which of the following is a synthetic material?

• Nylon

• Stone

• Wood

• Silk

How is steel, a synthetic material, created?

• By weaving natural fibers

• By spinning cotton fibers

• By mixing naturally occurring iron and carbon

• By extracting it from plants