HS-ESS2-1
Develop a model to illustrate how Earth's internal and surface processes operate at different spatial and temporal scales to form continental and ocean-floor features.
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EarthThe quake that shook up geology
North America’s biggest earthquake struck 50 years ago. Here’s what science has learned about Earth since the 1964 Great Alaskan Earthquake.
By Beth Geiger -
EnvironmentDoes lightning sculpt mountains?
A new study sparks debate about how much rubble on a mountainside has been blasted loose by powerful bolts from the sky.
By Sid Perkins -
EarthHow Earth’s surface morphs
Partly melted rock acts like grease to help huge masses of the planet’s surface slip up, around and down.
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SpaceBlack hole journey
Research on weird, invisible objects called black holes might help explain how the universe began.
By Emily Sohn -
EarthDigging into a tsunami disaster
A powerful earthquake under the Indian Ocean changed Earth's surface and spin.
By Emily Sohn -
EarthA volcano wakes up
Earthquakes, small eruptions, and a new lava dome unsettle Mount St. Helens.
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EarthDistant quake changes geyser eruptions
An Alaskan earthquake changed the timing of geysers thousands of miles away.
By Emily Sohn