HS-ETS1-1
Analyze a major global challenge to specify qualitative and quantitative criteria and constraints for solutions that account for societal needs and wants.
- Physics
Analyze This: Masks cut the distance that spit droplets fly
Both cloth masks and surgical masks reduced the distance spit traveled from a person talking or coughing by at least half, compared with no mask.
- Ecosystems
Recycling a climate-warming gas could make ‘greener’ farmed fish
Instead of warming the climate, methane gas can be collected to help farmers. Along the way, it may also save some fish.
- Chemistry
Snail slime + gold could boost the power of sunscreens and more
These two strange ingredients could make skin-care products that are better for both our skin and the environment.
- Chemistry
Could reusable ‘jelly ice’ cubes replace regular ice?
These hydrogel “jelly ice cubes” are made mostly of gelatin and water. They won’t melt, even when thawed, and may provide new food cooling options.
- Earth
From 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.
- Microbes
Genes point to how some bacteria can gobble up electricity
A new study shows how some microbes absorb and release electrons — a trait that may point to new fuels or ways to store energy.
- Archaeology
Vikings were in North America 1,000 years ago
Wooden objects provide the most precise dating yet for a Viking settlement on the coast of Newfoundland in Canada.
- Health & Medicine
Someday soon, smartwatches may know you’re sick before you do
Such an early detection of flu-like infections could tell you when to avoid others to limit the spread of disease.
- Brain
Concussion patients should avoid screen time for first two days
Teens may find it hard to avoid screen time, but data from a new study suggest it can speed their recovery.
- Chemistry
Everyday plastics can pollute, leaching thousands of chemicals
Plastic bags and containers leach potentially toxic chemicals into both food and water, but researchers yet don’t know how they might affect health.
- Tech
Did Facebook put Instagram profits ahead of teen safety?
Former employee said Facebook (now Meta) ignored its own research on Instagram risks to teens’ mental health. We look at the issues and what you can do.
- Animals
Bacteria make ‘spider silk’ that’s stronger than steel
Part spider silk, the material is better than what some spiders make. Researchers think it might make the basis for surgical threads or unusually strong fabrics.
