| dust particle | 3.88 | Dust particles floated in the sunlight. | ||
| soot particle | 1.18 | The same ruling overturned new standards for soot particles. | ||
| virus particle | 1.05 | It is made from killed HIV virus particles. | ||
| food particle | 0.92 | The finer the food particles, the easier it is to digest. | ||
| carbon particle | 0.66 | Fire too was made of matter -- gases and carbon particles. | ||
| clay particle | 0.59 | A layer of clay particles placed under the gravel layer is beneficial. | ||
| matter particle | 0.59 | The recoil from this emission changes the velocity of the matter particle. | ||
| soil particle | 0.59 | The chemical dissolves in water and does not cling to soil particles. | ||
| ice particle | 0.53 | Then the small ice particles may collide with other water droplets. | ||
| water particle | 0.46 | Scientists said the wispy clouds contained icy water particles and had a blue tint. | ||
| air particle | 0.39 | Some air particles, such as sand and soot, can travel great distances. | ||
| ash particle | 0.33 | The airborne ash particles act like a filter, selectively allowing blue light through the smokey pall aloft. | ||
| energy particle | 0.33 | Loosely speaking, then, we live in a world of matter particles and energy particles. | ||
| pollen particle | 0.33 | Then the stained rods are viewed with a microscope and pollen particles are counted. | ||
| pollution particle | 0.33 | Solid pollution particles trap heat and in turn heat the surrounding air. | ||
| protein particle | 0.33 | Did it happen molecule by molecule or protein particle by protein particle? | ||
| anthrax particle | 0.26 | The goal is to to de-ionize the anthrax particles without harming them, Collingwood added. | ||
| diesel particle | 0.26 | By next July, operators of those underground mines are supposed to test for and limit diesel particles in the mines. | ||
| iron particle | 0.26 | The yellowish color is due to oxidation of iron particles in the soils. | ||
| tau particle | 0.26 | So Perl had to create tau particles in a particle accelerator to study them. |