MS-PS1-1
Develop models to describe the atomic composition of simple molecules and extended structures.
- Chemistry
A new map of Africa sheds light on the origins of enslaved people
Mapping the element strontium across the continent is helping track down the birthplaces of enslaved Africans brought to the Americas.
- Physics
Scientists Say: Lepton
Leptons are a quirky class of particles. Besides electrons, they include ghostly neutrinos and hefty muons and tauons.
- Physics
This weird ice may exist on alien planets
Scientists used high pressure and heat to create plastic ice, which has qualities of both ordinary ice and liquid water.
- Chemistry
Scientists Say: Nucleosynthesis
For this nuclei-forging cosmic process, the Big Bang was just a way to get started.
- Math
Scientists Say: Dimension
The simple concept of dimensions has inspired sci-fi creators to wrinkle time and launch into hyperspace.
- Math
His love of math led to a career in quantum computing
James Whitfield began his career when quantum computing was still in its infancy. Today, he’s helping to make it more accessible to educators, researchers and others.
- Chemistry
Behold the world’s thinnest pasta
Made from white flour and formic acid, the nanofibers average just 370 nanometers across. That’s two-hundredths the thickness of a human hair.
- Archaeology
Let’s learn about radiocarbon dating
Through the power of radioactivity, carbon dating can reveal the age of many fossils and artifacts.
- Materials Science
Scientists Say: Quantum dot
Quantum dots are nanosized specks whose properties are governed by the strange rules of quantum physics.
- Physics
Let’s learn about entanglement
Entanglement is a special connection between particles that syncs up their properties — even when the particles are far apart.
- Chemistry
Explainer: How cells use chemistry to make the electricity of life
Charged particles, or ions, constantly move in and out of cells. These migrations produce tiny electric currents, which power your brain, heart and more.
- Animals
Metal gives the teeth of Komodo dragons their super strength
Investigating Komodo dragons' ironclad teeth in greater detail could also help solve a dental mystery in dinosaurs.
