MS-ESS2-2
Construct an explanation based on evidence for how geoscience processes have changed Earth's surface at varying time and spatial scales.
-
EarthVolcanic avalanches may be more destructive than previously thought
Pressures within these pyroclastic flows may be as much as three times as high as observations had suggested.
-
EarthThe ‘Doomsday’ glacier may soon trigger a dramatic sea-level rise
The ice shelf that had kept it in place could fail within five years. That would speed the glacier’s slip into the ocean, boosting a rise in sea levels.
-
LifeFrom 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.
-
EarthScientists Say: Avalanche
The word avalanche usually refers to a huge snowslide down a mountain, but it can also be used to describe any large mass of material tumbling downhill.
-
-
EarthWhat can ‘silent earthquakes’ teach us about the next Big One?
Earthquakes usually last seconds. But sometimes, they can last days, or even years. Here’s what scientists are learning about these “slow-slip events.”
-
EarthScientists Say: Magma and lava
The word magma refers to molten rock deep inside Earth. That rock is called lava when it reaches Earth’s surface.
-
EarthScientists Say: Anthropocene
Humans are changing the world in profound ways. Some scientists think those changes have launched a new epoch in Earth’s history: the Anthropocene.
-
EarthGreece’s Santorini volcano erupts more when the sea level drops
Data showing this association go back at least 360,000 years.
-
EarthRock rising from below the Atlantic may drive continents apart
Molten rock rising from the deep mantle at the Mid-Atlantic Ridge may drive plate tectonics there more than had been expected.
-
EnvironmentWhat you can do to improve soils
Soils are the life-sustaining structures under our feet. Here are some tips for keeping soils healthy. First rule of thumb: Give more than you take.
-
EnvironmentSurprising 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.