Chemistry
Scientists Say: Pyrolysis
This oxygen-free “burning” reaction explains why charcoal can burn, but typical campfire soot cannot.
HS-PS1-2
Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
More Stories in HS-PS1-2
- Chemistry
New polish could turn long nails into touchscreen styluses
It registers nails' touch by disrupting the touchscreen’s electric field. But this high-tech varnish isn’t ready to hit store shelves yet.
- Health & Medicine
Meet CLA, a naturally ‘healthy’ fat in burgers, ice cream and more
Solid at room temp, the natural trans fat conjugated linoleic acid resembles saturated fats — except that it appears good for the body in many ways.
- Chemistry
Explainer: What is chirality?
Chiral molecules are mirror images of each other. They might not seem all that different — but can have drastically different effects in medicine, materials and more.
- Physics
Chopping an onion? Sharp knives can keep its juice out of your eyes
Slow and steady cuts with a sharp blade, video shows, can reduce the pain-inducing spray of tiny onion-juice droplets.
- Chemistry
New materials yank ‘forever chemicals’ from water
Materials known as metal-organic frameworks, or MOFs, trap some PFAS fast — and can be reused again and again.
- Microbes
Thank microbes for chocolate’s tasty flavors
Cocoa beans matter, but yeast and bacteria may be the real secret to fine chocolate flavor.
- Chemistry
Newfound ‘anti-spice’ compounds tame chili peppers’ heat
Five compounds make some chili peppers taste less spicy than others. Scientists are still figuring out why.
- Chemistry
Experiment: How to keep fruit slices fresh
Let’s explore why fruit tends to brown over time and how to keep it looking fresh.
- Chemistry
Teen chemist uncovers potentially harmful preservatives in pet food
Thermo Fisher JIC finalist Mackensey Wilson measured levels of a chemical called BHT in three pet food brands.
