HS-LS1-2
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
- Chemistry
Here’s why teens’ body odor can be especially strong
The body odors of teens and younger kids share dozens of chemicals in common. But teens have some that infants and toddlers appear to lack.
- Animals
Elusive worm-lizards sport weird, spooky skulls
CT scans of these mysterious creatures turned up bizarre internal features. They could offer clues about amphisbaenians’ largely unknown behavior.
- Archaeology
A tattoo experiment hints at how Ötzi the Iceman got his ink
The findings challenge a common idea about how the mummified man got marked with dark lines.
- Animals
This egg-laying amphibian feeds its babies ‘milk’
Similar to mammals, this caecilian — an egg-laying amphibian — makes a nutrient-rich, milk-like fluid to feed its babies up to six times a day.
- Microbes
What the weird world of protists can teach us about life on Earth
Microbes vastly outnumber multicellular life on Earth. A close-up look at protists highlights how much we don't know about the microscopic world.
- Plants
Rampaging vines are slowly strangling tropical forests
Called lianas,these vines are growing out of control. They may cause tropical forests to absorb less carbon dioxide — worsening climate change.
- Health & Medicine
Health problems persist in Flint 10 years after water poisoning
Flint, Mich., residents still show health impacts long after a switch in their drinking-water source exposed them to toxic lead and other pollutants.
- Science & Society
Scientists Say: Model
Models are representations of real-life systems or processes that we use to ask questions, make predictions and test our knowledge.
- Health & Medicine
High blood pressure can affect kids but often goes undiagnosed
Left untreated, it can lead to lasting problems, even in kids who appear otherwise healthy. Learn the signs and what to do.
- Health & Medicine
Explainer: High blood pressure stresses the heart and blood vessels
Because it can be dangerous, doctors should regularly screen for it even in young kids and teens — but often don’t.
- Animals
Scientists Say: Coral
Over 4,000 species of fish make their home among the reefs created by these colony-dwelling marine animals.
- Planets
Research on exoplanets took top award at 2023 Regeneron ISEF
Six young researchers took home the top awards, each valued at a minimum of $50,000. Hundreds more shared nearly $9 million in prizes at international event.
