HS-PS1-3
Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
-
PhysicsPhysicists foil classic oobleck science trick
Cornstarch and water — best known as oobleck — solidifies upon impact. Researchers used a new technique to make it stay liquid.
-
PhysicsTry This: Walking on water with science
Water striders walk on water. How do they do it? They spread out. This experiment will show you how it works.
-
ChemistryConverting trash to valuable graphene in a flash
Flash heating of carbon-rich wastes creates graphene, which has many commercial uses.
-
PhysicsLike Magneto? Microcrystals give magnets superpower over living cells
New iron-rich protein crystals could help researchers better understand the nerve cells that control movement and sensation. All they need are magnets.
-
ChemistryExplainer: What are acids and bases?
These chemistry terms tell us if a molecule is more likely to give up a proton or pick up a new one.
-
PhysicsExplainer: How batteries and capacitors differ
Both batteries and capacitors can power electronic devices. Each, however, has different properties which may provide benefits — or limitations.
-
PhysicsWeird physics warps nearby star’s light
Scientists have observed a bizarre effect of quantum physics in light coming from a nearby neutron star.
-
ChemistryScientists Say: Surface tension
Surface tension is what makes water in your glass seem like it’s covered by an invisible membrane holding it together.
-
PhysicsPossibility of strange new particle surprises physicists
Last winter, physicists at the Large Hadron Collider detected hints of a particle beyond their wildest dreams. Soon they may learn if it’s real.
-
PhysicsStephen Hawking says his group has solved a black hole puzzle
Physicist Stephen Hawking says light sliding along the outside of a black hole holds the key to understanding what’s inside.
-
PhysicsNew 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.
-
Wire critter shows power of surface tension
Water striders walk on water by using surface tension. Now you can do the same with a wire critter weight-lifting contest.