Humans
Experiment: Discover the science behind afterimages
By observing afterimages, you can learn how different cone cells in the retina respond to various colors.
MS-LS1-3
Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
More Stories in MS-LS1-3
- Health & Medicine
A protein building block may help fight viruses and cancer
As a food supplement, arginine might one day help cut tumor formation and the proliferation of viruses in the body, mouse data suggest.
- Animals
Scientists Say: Mammal
Humans, platypuses, whales and kangaroos show the diversity of this vertebrate group.
- Animals
Some sea stars channel light like fiber-optic cables
The tiny cone-shaped structures in arms of chocolate-chip sea stars also triple their skeleton’s strength.
- Microbes
Fuzzy microbes may fuel cows’ methane burps
Production of this potent greenhouse gas is triggered by a newfound feature of these microbes — one with a funny name: hydrogenobody.
- Animals
Like living mood rings, these bees change color when it turns humid
Humidity makes North American sweat bees change color. This trait could be widespread among shiny insects, some biologists now suspect.
- Health & Medicine
Teens invent first chewing gum to tackle anxiety
Flavonoids from passionflower plants may one day give chewing gums the ability to take the edge off frazzled nerves or anxiety, report two Regeneron ISEF finalists.
- Animals
Physics explains how snakes climb and stand without limbs
Tree snakes can raise their body into the air without falling over. They keep their balance by bending their bodies close to their base.
- Health & Medicine
How pitchers rest between innings could save their arms — and stats
Focusing on muscle recovery during games could help keep pitch speeds high and injury risk low, one ISEF finalist finds.
- Health & Medicine
Scientists get smart about farts with new underwear sensor
It snaps into regular undies to measure releases of hydrogen gas. Rates vary widely, but 32 farts a day seems about average, early data suggest.
