HS-PS1-1
Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
- 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.
- Chemistry
The periodic table might soon have a new element
A new technique could be used to make the undiscovered element 120.
- Earth
Superman’s kryptonite doesn’t have a true equal on Earth
Though not quite kryptonite, some Earth minerals can glow under ultraviolet light. Excited electrons cause these real-life power stones to light up.
- Materials Science
Scientists Say: Goldene
Making this metallic, two-dimensional (2-D) material is difficult — but super-thin sheets of gold could have uses in electronics and chemistry.
- Chemistry
Scientists Say: Excitation
Excited electrons are to thank for dazzling fireworks displays, plants harnessing energy, the semiconductors behind modern tech and more.
- Tech
Artificial intelligence helped design a new type of battery
Supercomputing and AI cut the early discovery steps from decades to just 80 hours. The process led to a new solid electrolyte.
- Climate
Chemists make device to destroy planet-warming methane pollution
It can slash diffuse sources of this extremely potent greenhouse gas, such as from livestock barns and other sites.
- Environment
New ultrathin materials can pull climate-warming CO2 from the air
To slow global warming, we’ll need help from CO2-trapping materials. Enter MXenes. They’re strong and reactive — and they love to eat up CO2.
