From ancient coins to modern markets, gold has shaped money and value for centuries. Here's why, among all the elements, it has remained the world's store of value.

Currently, there are 118 elements on the periodic table—you'd think we'd be done adding them by now, but turns out we may ...

A leaking tanker truck spewed dangerous ammonia gas outside an Oklahoma hotel overnight — sending dozens of people to the hospital, forcing hundreds of residents to evacuate, and temporarily ...

A chemical spill injured dozens of people, some seriously, and forced hundreds to evacuate from a western Oklahoma city on Wednesday night, according to local officials. Evacuation orders were lifted ...

A leaking tanker truck spewed dangerous gas in a hotel parking lot, forcing hundreds of residents in a small Oklahoma city to evacuate and sending several dozen people to the hospital, authorities ...

A leaking tanker truck spewed dangerous ammonia gas outside a hotel overnight, filling its hallways with fumes and forcing hundreds of nearby residents of a small Oklahoma city to evacuate, ...

Authorities said a tanker truck parked outside a hotel in Weatherford, Okla., was leaking ammonia on Wednesday night, prompting evacuations. By Amanda Holpuch Dozens of people were hospitalized in ...

Two women hold tweezers and meticulously place small balls into small dents in a wooden board. American Chemical Society members volunteer time to place small balls into small dents to help finish a ...

The Periodic Table Restaurant and Bar, a Columbia restaurant serving contemporary American dishes with international twists, permanently closed its doors in late September. The restaurant announced ...

Periodic Labs Inc., an artificial intelligence startup working to speed up scientific research, has raised $300 million in funding. Andreessen Horowitz led the seed investment with participation from ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...