Matter

Discover the latest trends in Matter.

What Are Acids? A Core Chemistry Explainer

An introduction to acids, fundamental chemical compounds that play a crucial role in our daily lives, from the food we eat to industrial processes.

What is an Absorption Spectrum?

An explanation of absorption spectra and how these unique "fingerprints" of elements are used to analyze materials from distant stars to our own planet.

Alkali Metals: The Reactive Elements

An introduction to the alkali metals, the highly reactive elements in Group 1 of the periodic table, and their impact on technology and biology.