Tech
Gravity ‘batteries’ might help a weighty renewable-energy problem
To store the energy generated by wind and solar power, researchers are looking at mammoth systems that raise and lower weights.
MS-ESS2-4
Develop a model to describe the cycling of water through Earth's systems driven by energy from the sun and the force of gravity.
More Stories in MS-ESS2-4
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- Space
Gravitational waves ‘kicked’ a newborn black hole across space
Two black holes merged into one, and then sped off at around 5 million kilometers (3.1 million miles) per hour.
- Earth
Let’s learn about Earth’s secret stash of underground water
Groundwater provides drinking water to billions of people and is used to water crops worldwide.
- Life
From icebergs to smoke, forecasting where dangers will drift
Smoke drifts. Fish eggs float downstream. Where such drifting things end up may seem a mystery. But research can predict where they’ll end up.
- Climate
Scientists Say: El Niño and La Niña
El Niño and La Niña are part of a climate cycle that results in major weather changes every few years.
- Environment
Warming cities may see more rain — and frequent flooding
Scientists are seeking to understand why and how to mop up excess precipitation.
- Agriculture
New technologies might help keep drought-prone farms green
After learning how much damage drought can do to crops, two teens designed ways to detect a thirsty plant and make sure it gets enough water.
- Agriculture
Dew collector brings water to thirsty plants
This invention grabs water from the air at night. All it needs is the sun’s warmth the next day to release that moisture to growing plants.
- Environment
Surprising long-haul dust and tar are melting high glaciers
Dust and tar blown onto high mountains, like the Himalayas, boost the melting of snow and ice far more than scientists had realized. Here’s why.
