After mixing the soil into the water, what are the different phases of matter found in the mixture? Cite 3 examples
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Examples of Heterogeneous Mixture
A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts. By contrast, a mixture that is uniform in composition is a homogeneous mixture. For the purposes of this discussion, "not uniform" means anything that clearly has different parts visible to the naked eye. You can find many examples of heterogeneous mixtures in solid, liquid and gaseous form throughout nature.
Classifying Heterogeneous Mixtures
Heterogeneous mixtures are defined by what phase of matter they most resemble. Most heterogeneous mixtures contain multiple parts in multiple phases, but they usually behave on the whole as if they belong to one particular phase of matter:
Solid mixtures
Liquid mixtures
Gaseous mixtures
There are other phases of matter, including plasma and Bose-Einstein condensates, but they're beyond the scope of this article.
Solid Mixtures
The whole world is a solid heterogeneous mixture! Solid heterogeneous mixtures can contain liquid or gaseous components, but as a whole, they act as solids.
Mixed nuts at a party are a type of heterogeneous mixture that can be separated. Simply sort the pile into separate piles for each type of nut, and you will have broken down a heterogeneous mixture into its component parts.
Rocks in the sand at the beach are a heterogeneous mixture. Natural processes have mixed up sand, stones, shells and even living things, scattering them across the beach as a mixture.
A salad with lettuce, cheese, seeds, tomatoes, broccoli, and other vegetables is an example of a heterogeneous mixture.
Soil is an example of a heterogeneous mixture. It combines many different components which are not uniform, such as stone, clay, decaying plant material and even living things.
Liquid Mixtures
When a mixture contains multiple distinct components, but the whole mixture acts like a liquid, that is a liquid heterogeneous mixture. Here are some examples:
A bottle of balsamic vinaigrette salad dressing is a mixture that is heterogeneous, consisting primarily of oil and vinegar. You can (and should!) shake up a vinaigrette to make the mixture appear and taste more combined, but it will always separate into its component parts when left alone.
A bowl of oatmeal with raisins is a heterogeneous mixture. The raisins may be solid, but turn the bowl over and you will see the mixture as a whole most definitely acts like a liquid.
Mud puddles are a heterogeneous mixture. Dirt, leaves and all sorts of other runoff mixes with rainwater and pools into a mixture where the component parts can be clearly seen.
The Pacific Ocean is a huge example of a heterogeneous mixture, full of solid objects and even living things, but all suspended in a vast quantity of moving water. By itself, saltwater is a homogeneous mixture, but the vast array of other things in the water, from plankton to blue whales, make it heterogeneous.
Gaseous Mixtures
Some heterogeneous mixtures are primarily gaseous. Gaseous mixtures may contain liquids or even solids, but as a whole, they act as a gas.
Mist and fog can be considered heterogeneous mixtures, as tiny droplets of water hang visibly in the air.
Perfume and cologne are gaseous heterogeneous mixtures, with tiny droplets of scent-carrying chemicals drifting like a gas onto the wearer's skin.
Smog is a heterogeneous mixture of various particles and pollutants suspended in the air. The dirty particles that make up the smog can be removed from the air and breathed into the lungs, making smog quite a problematic heterogeneous mixture.
Smoke from a fire is another heterogeneous mixture, combining chemicals from the fire's fuel and CO2 from the oxidation process with the air surrounding the flame.
Multiphase Mixtures
While almost all heterogeneous mixtures contain some substances in different phases, many are defined by the presence of things in distinct, different phases of matter.
The classic chemistry class example of a multiphase mixture is a bowl of cereal. Here you have a heterogeneous mixture of solid cereal in liquid milk.
Carbonated water (or carbonated anything) is a multiphase heterogenous mixture, with gaseous carbon dioxide (CO2) bubbling through liquid water (H2O).
Lava from a volcano is a multiphase mixture, with some solid chunks of rock surrounded by hot, molten stone.
Sand shaken up in a bottle of water is a heterogeneous mixture of solid and liquid. Left alone, the solid particles of sand will settle to the bottom of the liquid water.