HS-ESS3-4
Evaluate or refine a technological solution that reduces impacts of human activities on natural systems.
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Animals
Tiny earthworms’ big impact
Invasive earthworms change North American landscapes, for better or worse.
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Health & Medicine
Sunlight worsens jet pollution
Chemical reactions caused by the sun’s rays worsen air pollution from idling jets at airports.
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Materials Science
Battery powered to heal
With its own first-aid kit, this battery can really keep going.
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Environment
Planting seeds for better plastic
Scientists are working to put the bio in plastics.
By Emily Sohn -
Fossils
Downsized dinosaurs
Island living may have led to miniature versions of giant dinosaurs.
By Emily Sohn -
Tech
Cold house, hot house, green house
Saving energy at home requires paying attention to the building's windows, walls, and roof.
By Emily Sohn -
Environment
Alien invasions
Around the world, plants, animals, fungi, and other life forms are ending up in places where they don't belong.
By Emily Sohn -
Environment
A vulture’s hidden enemy
Vultures may be getting a deadly dose of medicine from the carcasses they feed upon.