Microplastics, those tiny bits of plastic, are everywhere. They float in the air and settle on the ground. But how do they get around? It turns out their shape and size play a big role. In a recent study, scientists looked at how these tiny plastic pieces move through the air and land in Shanghai. They found that the shape and size of microplastics affect how they t...

Tiny plastic pieces, called microplastics, come in different shapes and types. Scientists wanted to see how these tiny plastics move through sand. They looked at two kinds: polystyrene (PS) and polyethylene terephthalate (PET). PS was in tiny spheres, while PET came in both spheres and fragments. The team used two types of sand: coarse and fine. They found that in c...