Tech 3 7.3

The first widely used plastic in the 20th century was called...

• Plastic

• Bakelite

• Lucite

• Ivory

Plastics did NOT replace this material

• Wood

• Metal

• Coal

• Glass

Most plastics are made from...

• Fossil fuels

• Plants

• Animals

• Wood

What is the main chemical element of organic substances?

• Hydrogen

• Nitrogen

• Oxygen

• Carbon

Used for loading and transporting objects or in plastic containers

• Light plastics

• Impermeable plastics

• Thermal insulators

• Electrical insulators

we can make sweaters with these synthetic fibers that isolate us from the cold, or we can isolate our house to avoid energy losses in heating

• Light plastics

• Impermeable plastics

• Thermal insulators

• Electrical insulators

we can produce fabrics and materials that protect us from the rain, or pipes that carry water or gas

• Light plastics

• Impermeable plastics

• Thermal insulators

• Electrical insulators

we can have garden furniture that will not rust like iron or rot like wood

• Impermeable plastics

• Weatherproof and corrosion resistant plastics

• Electrical insulators

• Light plastics

we can manufacture windows, bottles or lenses for impact resistant glasses

• Tough plastics

• Light plastics

• Impermeable plastics

• Weatherproof plastics

continued exposure to sunlight degrades them and makes them more brittle over time

• Tough plastics

• Impermeable plastics

• Photodegradable plastics

• Weatherproof plastics