Polymers are large molecules made of repeating units called monomers.

Natural polymers include DNA, proteins, and cellulose.

Synthetic polymers include plastics like polyethylene and nylon.

Polymers have various uses from packaging to clothing.

Some polymers are flexible; others are very strong.

Plastics are polymers that can be molded when heated.

Biodegradable polymers break down naturally over time.

Polymer chains can be long and tangled or arranged orderly.

Rubber is a natural polymer used for tires.

Polymers are studied in materials science and chemistry.