MS-ESS3-3
Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.
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Oceans
Deep-sea dump: Trash is collecting on the Arctic seafloor
Trash is building up on the bottom of the Arctic Ocean, including plastic bags, glass shards and fishing nets.
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Environment
Cleaning up water that bees like to drink
Plant roots suck up pesticides used on soils, then release them into water that can seep from their leaves. This is a sweetened water that bees love to sip. A teen figured out how to remove most of the pesticide with bits of charcoal.
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Space
Student programs computer to predict path of space trash
People are already using space as a garbage dump, which could prove dangerous to future space travelers. A teen set out to track space junk using only her home computer.
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Ecosystems
Underwater meadows appear to fight ocean germs
The seagrasses that sway in coastal currents are more than aquatic groundcover. They can reduce harmful bacteria that might otherwise sicken neighboring animals, new data show.
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Environment
Food-like smell on plastic may lure seabirds to eat it
When plastic smells like supper, seabirds and other animals can be fooled into thinking it is food.
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Climate
Predicting a wildfire with data from space
When the West gets dry it can catch fire. A teen decided to find out if satellite data might show where a fire’s fuel might reside.
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Environment
Ocean of the future may make shrimp small and colorful
Carbon dioxide released into the air can end up in the ocean, making it more acidic. A teen showed that this acidification could shrink shrimp and make them more colorful.
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Animals
Spidey sense: They can hear you!
Surprise! At least some spiders can hear us. Even without eardrums, jumping spiders can still detect airborne sounds from across the room.
By Susan Milius -
Oceans
Beaches can be a germy playground
Infectious microbes can flourish on sandy beaches. Scientists are now exploring how to find and monitor these hotspots for pollution that can make vacationers sick.
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Oceans
Creative ways to help coral reefs recover
Coral reefs are under siege from threats ranging from climate change to explosives. But scientists are developing ways to rebuild reefs before they disappear.
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Environment
Laundering clothes may send indoor pollutants outdoors
Clothing absorbs pollutants from indoor air. During washing and drying, the fabric releases those chemicals into the outdoor environment, a new study finds.
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Health & Medicine
U.S. to outlaw antibacterial soaps
Soaps with germ-killing compounds promise cleaner hands. But manufacturers couldn’t show they offer any safety advantage. Now the U.S. government is banning them.
By Helen Thompson and Janet Raloff