1. What is meant by natural and man-made materials ?2. Make a list of natural and man-made substances you seearound you.

1. Natural materials are those that are sourced directly from nature. They are not altered or changed by humans in any significant way before their use. Examples include wood, stone, leather, cotton, wool, and natural rubber.

Man-made materials, on the other hand, are substances created or significantly altered by human beings. These materials are often created in a lab or factory using various chemical processes. Examples include plastic, synthetic fibers like polyester or nylon, metals like steel or aluminum, and glass.

2. Here are some examples of natural and man-made materials that you might see around you:

Natural Materials:

• Wood (in furniture, paper, etc.)
• Cotton (in clothes)
• Leather (in shoes, bags, etc.)
• Stone or marble (in buildings, statues, etc.)
• Wool (in clothes, carpets, etc.)

Man-made Materials:

• Plastic (in bottles, bags, toys, etc.)
• Glass (in windows, bottles, etc.)
• Steel (in cars, buildings, appliances, etc.)
• Polyester or nylon (in clothes, carpets, etc.)
• Aluminum (in cans, foil, etc.)