
Plastic - Wikipedia
Plastics are a wide range of synthetic or semisynthetic materials composed primarily of polymers. Their defining characteristic, plasticity, allows them to be molded, extruded, or pressed into a …
Plastic | Composition, History, Uses, Types, & Facts | Britannica
Nov 19, 2025 · Plastic, polymeric material that has the capability of being molded or shaped. This property of plasticity, often found in combination with other special properties such as low …
About Plastic Products and Plastic Pollution | US EPA
Oct 31, 2025 · Plastic products are generally versatile, durable and lightweight. Plastic products are prominent in the construction, transportation, and packaging industries. Plastic innovations …
What we learned about microplastics in 2025 - The Washington Post
Jan 4, 2026 · For many scientists, 2025 was the year of microplastics. Researchers have known for decades that tiny plastic particles were floating around in rivers and lakes and …
Plastic pollution | UNEP - UN Environment Programme
Dec 4, 2025 · UNEP supports governments, businesses, financial institutions, and other stakeholders in driving a just transition to a circular economy for plastics, helping to reduce …
An Introduction to Plastics - Chemical Safety Facts
Plastic is a versatile material used to make thousands of products people use every day. Learn about the types of plastic classification, history and unique chemistry that gives plastic its …
Plastic - Scientific American
Nov 18, 2025 · Plastic coverage from Scientific American, featuring news and articles about advances in the field.
A plastic grocery bag has been found in the Mariana Trench - the deepest point in the ocean, and without urgent action, the estimated 11 million metric tons of plastic currently entering the …
PLASTIC Definition & Meaning - Merriam-Webster
The meaning of PLASTIC is a plastic substance; specifically : any of numerous organic synthetic or processed materials that are mostly thermoplastic or thermosetting polymers of high …
How Plastics Work - HowStuffWorks
In this article, we'll examine the chemistry of plastic, how it's made, how it's used, and how it's disposed of and recycled. We'll also look at some new biologically based plastics and their role …