At Mandrin Cave in southern France, archaeologists found a modern human child’s molar among layers containing Neanderthal ...

At Olduvai Gorge in Tanzania, a molar found in 1959 and the OH 7 remains uncovered in 1960 helped establish Homo habilis as a ...

Consistency is an intervention. A student’s own successful experience of a task is one of the strongest sources of their ...

Fine-grained kaolinitic clays have long been a headache for geotechnical engineers. Their strength collapses when wet, their compressibility is high, and their behavior shifts dramatically with every ...

Northwestern University scientists have developed remarkably long, precisely patterned molecular threads that could open new ...

This week's chemistry newsOn September 21, 2026, CarbonOcean in Switzerland and the GEOMAR Helmholtz Centre for Ocean ...

Hello everyone! I am Yamamoto, and I teach chemistry at Galileo.“When finding moles (mol) from mass, do I multiply or divide?

Researchers at the University of Ulm have described the first autonomous walking small-molecule machine: a simple phosphate group ( Nat. Chem. 2026, DOI: 10.1038/s41557-026-02240-4). The walker ...

Turn concentration into a concept you can calculate, convert, prepare, and apply with confidence. This 75-minute IB DP Chemistry HL lesson on Molar Concentration (Structure 1.4) takes students from ...

An ancient human molar shows that Neandertals sometimes drilled out infected teeth with stone tools — suggesting they may have known the treatment could ease extreme tooth pain. The 59,000-year-old ...

•Content and lots of practice using the mass = number of moles x molar mass equation •Content on Avogadro’s constant and using the equation: number of particles = moles x avogadro’s constant ...