Earth
It’s electric! Long-sought new field found in Earth’s atmosphere
This ambipolar electric field is weak. Yet it’s still strong enough to control the evolution of Earth’s upper atmosphere — and maybe life as we know it.
MS-PS2-3
Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.
More Stories in MS-PS2-3
- Tech
Nanobots can now enter brain cells to spy on what they’re doing
Fleets of advanced versions may one day be able to detect disease and then go about surgically treating it — without ever opening the skull.
- Tech
Magnetic fields melt and re-form new shape-shifting devices
Miniature machines made of gallium and magnetic particles can switch from solid to liquid and back.
- Physics
Scientists Say: Magnetism
Magnetism is an aspect of one of the four fundamental forces of nature: electromagnetism.
- Agriculture
Native Amazonians make rich soils — and ancient people may have too
Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient “dark earth” found in the region.
- Tech
Underwater cameras get a new power source — sound!
Needing no batteries, a new digital camera can run almost continuously to offer new, deeper insights into the ocean world.
- Earth
Scientists Say: Pole
A pole is either of two opposite ends of a molecule, magnet, battery, planet or other object.
- Physics
Scientists Say: Force
When an object experiences a force, its change in motion — or acceleration — depends on its mass.
- Tech
You might someday ‘wallpaper’ your bedroom with this loudspeaker
This thin, flexible and lightweight loudspeaker could reduce noise in loud spaces. It also might enable listeners to experience sound in new ways.
- Plants
Electric shocks act like vaccines to protect plants from viruses
To protect crops against viruses in their home country of Taiwan, two teens invented a novel approach to fight blights.
