It is called a speck.
There are three primary components of soil ("dirt"): Sand, Silt, and Clay.
sand has more porosity because sand has a very smaller particle size than dirt. relatively, the smaller the particle size, the higher the porosity. clay has the highest porosity than other soils. sand has high porosity. dirt has low porosity
Sand typically weighs more than dirt because it has a higher density due to its smaller particle size. This means that sand occupies less space compared to the same volume of dirt, resulting in sand being heavier.
Rocks, dirt, and water separate into layers through a process called sedimentation, where heavier materials settle to the bottom first, followed by lighter materials. Over time, this results in the formation of distinct layers based on the size and weight of the particles in the mixture. This process can be influenced by factors such as the force of gravity, water flow, and particle size.
At the center of every raindrop is a tiny particle, such as dust or salt, around which water vapor has condensed. These particles serve as nucleation sites around which water molecules cluster and form droplets.
dirt
There are three primary components of soil ("dirt"): Sand, Silt, and Clay.
A grain
An electron is a tiny particle that carries a negative electrical charge. It is a fundamental subatomic particle found in atoms.
Light comes in tiny distinct packages called photons.
A tiny particle or packet of light is called a photon. These particles are the basic unit of light and carry electromagnetic radiation.
So far, the "quark" is believed to be the most tiny fundamental particle.
Particle in the English language refers to the a very tiny piece of something.
ATOM
The smallest particle of matter having distinctive chemical and physiacl properties; a tiny particle
The particle theory is called the "particle model" or "particle theory of matter." It proposes that all matter is composed of tiny particles that are in constant motion.
There are lots of them. Perhaps you mean neutrinos?