Organic Pollution

Forest meadows, fresh flowers… tail pipe exhaust? This is Sandra Tsing Loh with the Loh Down on Science. Secondary organic aerosols–gah! These tiny particles are a class of chemicals that form the air around us. As natural and industrial gas emissions interact with sunlight, the resulting particles reflect or absorb

High-Class Element

More money, more problems? Not if you are a social-climbing metal! This is Sandra Tsing Loh with the Loh Down on Science. Electrons are like the currency of chemistry. And usually, elements like to have a full wallet! Many elements, like carbon and oxygen, are stuck at eight electrons —

Water Wonder

Water treatment that’s effective…and CUTE! This is Sandra Tsing Loh with the Loh Down on Science. Most treatment facilities purify water by using chemicals that glob onto bad stuff. But this process isn’t perfect… if only someone could lend a hand… or a tentacle?! Introducing the sea anemone Actinia! It

Smells Like Lemur Spirit

Scary! A creature that can smell your weakness! This is Sandra Tsing Loh with the Loh Down on Science. When we think of creatures that smell weakness, we imagine…vampires! Sci-fi villains! That TERRIFYING clown in IT??!! Well, science has added a new creature to that list: LEMURS?! Rachel Harris from

Toxic Baby Food

Ughhh, what did I eat?. This is Sandra Tsing Loh with the Loh Down on Science. Caterpillars are cute, but not when they damage crops. Plants defend themselves by producing chemicals that attract wasps, a natural pest control. Wasps lay eggs in caterpillars, and hatchlings slowly eat the caterpillars from