It's Synthetic! Trivia Quiz

Answer: Textiles

Polyester begins as petroleum-derived chemicals that are joined through polymerization. In one common process, ethylene glycol reacts with terephthalic acid to form polyethylene terephthalate, better known as PET. After the polymer melts, it is pushed through spinnerets, where it becomes fine filaments that can be stretched and spun into yarn.

The finished fabric is popular because it keeps its shape, does not shrink easily, and dries faster than many natural fibers. That is why polyester shows up so often in clothing, upholstery, bags, and other products that need to handle frequent use.

Answer: Textiles

First developed in the 1930s as a substitute for silk, nylon soon became one of the first synthetic fibers to enter ordinary life. Chemically, it is a polyamide, usually made when petroleum-based compounds such as adipic acid and hexamethylene diamine react under heat and pressure. Once the polymer forms, manufacturers can draw it into smooth, durable fibers or shape it into harder molded parts.

Its early use in stockings and parachute fabric helped prove how strong it could be for its weight. Today, nylon remains valuable because it bends without breaking easily, resists abrasion, and can be produced on a large scale.

Answer: Textiles

Rayon is not fully synthetic, since it starts with natural cellulose from sources such as wood pulp or cotton linters. The cellulose is chemically broken down, often through the viscose process, until it becomes a thick liquid. That liquid passes through spinnerets into a chemical bath, where it hardens into long fibers.

After the fibers are washed, stretched, and spun, they can produce a soft fabric with a smooth drape. Rayon became useful because it can imitate some qualities of silk or cotton while remaining cheaper to manufacture.

Answer: Textiles

Spandex, also called elastane or Lycra, is the material that gives stretch clothing its recovery. It is made from polyurethane, a long-chain polymer formed when a polyester or polyether reacts with a diisocyanate. Inside the fiber, flexible sections allow it to stretch, while firmer sections help pull it back toward its original shape.

A small amount of spandex can change the feel of an entire fabric, making it fit closer to the body without becoming stiff. This makes it especially important in clothing that needs both comfort and movement.

Answer: Composites

Kevlar is an aramid fiber designed for high strength and heat resistance. Its production involves para-phenylenediamine and terephthaloyl chloride, which react to create long, rigid molecular chains. When these chains are spun into fibers, they align closely and give the material unusual tensile strength for its weight. Kevlar is often associated with body armor, but its usefulness is broader than that.

It reinforces materials in situations where ordinary fibers would stretch, melt, or fail under stress.

Answer: Composites

Fiberglass is made by melting mineral ingredients such as silica sand and limestone until they become liquid glass. The molten glass is then pulled through tiny openings, cooling into thin, flexible strands. On their own, these fibers are useful, but their real strength appears when they are combined with plastic resin.

The resin holds the fibers in place, while the glass gives the material stiffness and durability. This combination produces a composite that is light enough for large molded shapes but tough enough for boats, insulation, panels, and similar demanding uses.

Answer: Composites

Formica is a hard laminate often used on countertops and furniture surfaces. It is made from layers of paper or fabric that have been soaked in thermosetting resins. The lower layers, usually treated with phenolic resin, give the sheet strength, while the decorative top layer is protected by melamine resin. Under high heat and pressure, the layers cure into a solid, non-porous surface.

Its popularity comes from a practical advantage: it gives kitchens, schools, diners, and offices a surface that can handle daily wear without needing the cost or maintenance of stone or solid wood.

Answer: Composites

Carbon fiber is known for being both light and extremely stiff. Most commercial carbon fiber begins with polyacrylonitrile, or PAN, which acts as the precursor material. During carbonization, the precursor is heated to very high temperatures without oxygen, leaving behind fibers made mostly of carbon.

The atoms inside the fibers become tightly aligned, which explains much of the material's strength. When carbon fiber is embedded in resin, the result is a composite that can replace metal in aircraft parts, racing equipment, and prosthetics.

Answer: Adhesives

Epoxy adhesive usually comes in two parts: a resin and a hardener. Once mixed, the two begin curing through a chemical reaction that turns the liquid or paste into a hard solid. This cured structure is strongly cross-linked, so it can hold materials together even when the joint has to resist water, pressure, or vibration. Epoxy is also useful because it can fill small gaps rather than simply coating a perfectly flat surface. For repairs or construction jobs that need a durable bond, it is stronger than ordinary household glue.

Answer: Adhesives

Cyanoacrylate is the adhesive commonly sold as super glue. It hardens quickly because its liquid monomers react with tiny amounts of moisture on a surface or in the air. As the monomers link together, they form long polymer chains and create a solid bond in seconds.

The glue works best in thin layers, especially when the two surfaces fit closely together. Its speed makes it useful for small repairs, but that same speed also leaves little room for adjustment once the pieces touch.

Answer: Adhesives

Polyvinyl acetate, or PVA, is the familiar white glue used in many classrooms and workshops. It is made when vinyl acetate monomers join together to form long polymer chains. Since the glue is water-based, it spreads easily and begins to set as the water evaporates. On porous materials, it soaks slightly below the surface before drying into a flexible bond. PVA is popular because it is inexpensive, low-odor, and easy to clean up before it hardens.

Answer: Adhesives

Silicone adhesive is built from flexible polymer chains containing silicon and oxygen, along with elements such as carbon and hydrogen. After curing, it stays rubbery rather than becoming hard and brittle. That flexibility is important for when a joint has to expand, contract, or vibrate without cracking.

Many silicone adhesives cure by reacting with moisture in the air, slowly changing from a paste or gel into an elastic solid. Because cured silicone tolerates water and temperature changes well, it is often chosen for sealing as much as for bonding.