HS-PS1-2
Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
- Health & Medicine
How hot peppers can soothe pain
Peppers can burn the tongue, but soothe sore tissues. Scientists have now sleuthed out how, and the answer shows a role for stretch sensors on cells.
- Physics
New particle may help probe strongest force in the universe
A newfound subatomic particle should allow scientists to better understand the strong force that holds together the nucleus of every atom.
- Chemistry
Scientists confirm element 117
Scientists have confirmed the existence of a new, short-lived superheavy element. For now, they’re calling it ununseptium.
- Physics
Quark quartet forms exotic particle
Quarks are important building blocks of matter, usually bound together as pairs or triples. Now some have formed a quartet. Scientists confirmed the existence of a particle made of four quarks stuck together. Such strange stuff may have been more common in the earliest universe, the scientists say.
- Chemistry
Explainer: Ocean acidification
Here’s why shellfish and other animals in the sea suffer when the ocean is forced to absorb too much carbon dioxide.
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