The water molecule (H₂O) is made up of one oxygen atom and two hydrogen atoms, with a shape somewhat like a "V". This gives the...
When your skin comes into contact with extreme cold, like an ice cube, your body reacts quickly to limit damage. Immediately, the surface blood vessels...
During the 1930s, Lise Meitner collaborated with the chemist Otto Hahn to study nuclear reactions. She understood that when uranium is bombarded with neutrons, its...
Paper is primarily made of plant fibers derived from cellulose, a very porous natural polymer that forms a network of tiny spaces and interwoven channels. Imagine a...
Coffee grounds are mainly full of organic compounds derived from roasted beans. They primarily contain cellulose and lignin, which are plant fibers. It also contains...
Iron is a metal that easily oxidizes when exposed to water and oxygen. Its surface reacts deeply to create rust, which is iron oxide, reddish-brown...
A dilution is the act of adding solvent (usually water) to a solution to decrease its concentration, without changing the actual amount of dissolved substance. In other...
Density is simply what determines whether a substance sinks or floats on another. Each liquid has a different mass for the same volume; that's what...
The Archimedes' principle is simply the upward force that a liquid exerts on any object submerged in it. Essentially, every object we immerse, like an...
Pure water normally freezes at 0°C. But when you add salt, you disrupt this process: your salted water will have to drop below 0°C to...
