This is a title slide named "Clothes Then and Now." It features the subtitle "Science Group for Elsian Day."

Clothes Then and Now

Science Group for Elsian Day

Source: Science Group for Elsian Day

The agenda slide outlines past natural clothing materials like cotton, wool, silk, and linen (biodegradable with natural dyes) versus today's synthetics like polyester, nylon, and acrylic (strong, cheap, but polluting). It then covers a comparison of their properties, pros, and cons, followed by a conclusion with summary and future science insights.

Agenda

1. Past: Natural Materials

Clothes from cotton, wool, silk, linen; biodegradable, natural dyes.

2. Today: Synthetics

Polyester, nylon, acrylic from petroleum; strong, cheap, polluting.

3. Comparison

Natural vs. synthetic: properties, pros, cons.

4. Conclusion

Summary and future science insights. Source: Science Group for Elsian Day Presentation: Clothes Then and Now

This section header slide, titled "Clothes in the Past" and numbered 01, introduces the topic. Its subtitle emphasizes the science focus on natural materials from plants and animals.

Clothes in the Past

01

Clothes in the Past

Science Focus: Natural Materials from Plants and Animals

Source: Science Group for Elsian Day Presentation

Natural fibers like cotton, wool, silk, and linen, sourced from plants and animals, are biodegradable. They are dyed with natural plants and minerals, involving no chemical processing.

Natural Fibers

• Used natural fibers: cotton, wool, silk, linen
• Sourced from plants and animals; biodegradable
• Dyed with natural plants and minerals
• No chemical processing involved

Source: Science Group for Elsian Day Presentation: Clothes Then and Now

The slide "Clothes in the Past" features natural fibers like cotton, wool, silk, and linen. These were sourced from plants and animals, fully biodegradable, and dyed with natural plant or mineral substances without chemicals.

Clothes in the Past

!Image

• Natural fibers: cotton, wool, silk, linen.
• From plants/animals, fully biodegradable.
• Natural dyes from plants/minerals, no chemicals.

Source: Wikipedia

This section header slide, titled "Clothes Today" and numbered 02, introduces a new topic. Its subtitle emphasizes a science focus on synthetic materials and the chemical industry.

Clothes Today

02

Clothes Today

Science Focus: Synthetic Materials and Chemical Industry

Source: Elsian Day Presentation: Clothes Then and Now

Synthetic materials feature fibers like polyester, nylon, and acrylic, derived from petroleum via chemical reactions. They are strong, waterproof, and inexpensive, though factories are not eco-friendly.

Synthetic Materials

• Synthetic fibers: polyester, nylon, acrylic
• From petroleum via chemical reactions
• Strong, waterproof, inexpensive
• Factories: not eco-friendly

The "Then vs. Now" slide contrasts clothing materials. Then, natural fibers like cotton, wool, silk, and linen were biodegradable, plant- or animal-based, and used natural dyes without chemicals; now, synthetic ones like polyester, nylon, and acrylic are petroleum-derived, durable, cheap, and waterproof but polluting and non-biodegradable.

Then vs. Now

The conclusion slide states that science has evolved clothing from natural to synthetic materials. It urges sustainable innovation by pioneering eco-friendly fabrics for tomorrow's world.

Conclusion

Science evolved clothes from natural to synthetic. Innovate sustainably!

Pioneer eco-friendly fabrics for tomorrow's world.

Source: Science Group for Elsian Day Presentation: Clothes Then and Now