Essentially, it is due to the gravitational pull on this earth. The heavier materials weigh more and are therefore pulled toward the center of this planet. But, this 'separation' only occurs when the mixed materials have some viscosity (fluid-like characteristics) so that the heavier material can 'flow' past the fluid-like material. Sand, as an example is not a viscous material, but since it has a weak 'binding' characteristic (ability to hold itself together), the subtlest vibration and shaking will allow heavier materials above it to sink and settle down into and through it (don't build your house on sand!!) Out in the vacuum of deep space, there is still a trace of magnetic pull (especially close to other planets), but mixed materials will remain separated because there is not such a strong force (the gravity) working to pull them toward a common direction (in our case, the ground of the earth). There is a much more scientific explaination for this, but these are, after all, MyPerspectives!
This type of mixture is called a suspension. Suspensions contain particles dispersed in a liquid medium, and these particles are large enough to settle out over time due to gravity. Stirring or shaking a suspension can temporarily disperse the particles, but they will eventually settle back down.
A suspension has large particles that settle out on standing.
Mixtures in which some of the particles settle out are called suspensions. An example of a mixture is dirt mixed with a large amount of water. On the other hand, mixtures in which the particles do not settle out are called colloids.
Colloids contain particles that are larger than those in a solution but smaller than those in a suspension. Suspensions have particles that are large enough to settle out over time, unlike solutions where particles are uniformly dispersed and do not settle. Solutions have the smallest particle size and the particles do not settle or scatter light.
The mixture is most likely a suspension. Suspensions are heterogeneous mixtures with particles that are larger and heavier than the solvent particles, causing them to settle out if the mixture is left undisturbed.
suspension
This type of mixture is called a suspension. Suspensions contain particles dispersed in a liquid medium, and these particles are large enough to settle out over time due to gravity. Stirring or shaking a suspension can temporarily disperse the particles, but they will eventually settle back down.
A suspension has large particles that settle out on standing.
suspension
suspension
Mixtures in which some of the particles settle out are called suspensions. An example of a mixture is dirt mixed with a large amount of water. On the other hand, mixtures in which the particles do not settle out are called colloids.
Colloids contain particles that are larger than those in a solution but smaller than those in a suspension. Suspensions have particles that are large enough to settle out over time, unlike solutions where particles are uniformly dispersed and do not settle. Solutions have the smallest particle size and the particles do not settle or scatter light.
This is a mixture solid-liquid or solid-gas.
It would take more time for smaller particles to settle because they are lighter than larger particles, making it harder for them to settle. Its is easier for larger particles to settle because if they bump up against each other they wont move much and their heavier weight will cause them to stay once settled.
a suspension
The mixture is most likely a suspension. Suspensions are heterogeneous mixtures with particles that are larger and heavier than the solvent particles, causing them to settle out if the mixture is left undisturbed.
The mixture is called a colloid. Colloids have particles that are larger than those in a solution but smaller than those in a suspension. The particles are dispersed throughout the mixture and do not settle due to the particles being combined with a dispersing medium.