HS-ESS2-5
Plan and conduct an investigation of the properties of water and its effects on Earth materials and surface processes.
- Earth
Explainer: How is water cleaned up for drinking
Unless you’re drinking well water, city folks typically get drinking water that has been treated in a water-treatment plant. Here’s what that means.
- Physics
Explainer: Winds and where they come from
Temperature and pressure are critical factors affecting why the wind blows where it does. Understanding the nature of wind can teach us a lot about weather.
- Earth
Antarctic ice shelf sheds Delaware-sized iceberg
Larsen C is a major ice shelf in Antarctica. An iceberg the size of Delaware has just splintered off of it in one of the largest calving events ever recorded.
- Tech
Teen’s invention can warn of deadly rip currents
A teen lifeguard from Australia has invented a buoy that can alert swimmers to the strong, swift and deadly rip currents that can sweep them dangerously far offshore.
- Environment
Arctic Sea could be ice-free by 2050
Everyone contributes to the melting of Arctic sea ice, and all are in danger of making summer ice disappear there completely by 2050, a new study finds.
- Climate
Cool Jobs: Wet and wild weather
How’s the weather? Forecasts rely on scientists and engineers who collect and interpret data gathered on the ground, in the sky and way up in space.
- Earth
Scientists Say: Hoodoo
When softer rocks are covered with a harder rock layer, weathering can wear away the softer stone. This will leave behind tall thin towers — hoodoos.
- Tech
Concrete science
Teen researchers are exploring ways to strengthen this building material, use it for safety purposes and use its discarded rubble.
- Earth
Carbon dioxide could explain how geysers spout
A new study overturns 150 years of thinking about Yellowstone’s geysers. Carbon dioxide, not just hot water, may be driving those spectacular eruptions.
- Oceans
Arctic ice travels fast, carrying pollution
Climate change is melting old sea ice in the Arctic. Now, younger, thinner ice is migrating far and fast, taking pollutants with it.
- Oceans
Explainer: What is a tsunami?
Earthquakes and landslides can create huge waves that travel across oceans.
- Physics
Bracing sand sculptures with gravity
Natural sculptures of sandstone withstand strong winds and rains. The reason, a new study concludes: Gravity holds the sand grains together.
