hidden_mixtures

Congratulations! You have found the hidden mixtures page.
The **key** to thinking about mixtures is to understand **what the particles are doing**. In a mixture the particles of one substance (or several substances) are **spread through** the particles of another substance. We are learning about the three kinds of mixtures. You need to read and remember the key words, the definitions, and think of examples for each kind of mixture. Remember to think about how big or small the particles are and what the particles are doing in each kind of mixture. =1. Solutions= Solutions are the most common kind of mixtures. They are made by dissolving one substance (called the **solute**) in another substance (called the **solvent**). When one substance can dissolve in another we say the substance is **soluble**. When it won't dissolve we say it is **insoluble**.

You get a **dilute** **solution** when not much solute is dissolved. You get a **concentrated** **solution** when you dissolve a lot of solute. You get a **saturated** **solution** when you have dissolved so much solute that no more will dissolve!

In a solution the particles of solvent and solute are about the same size. =2. Suspensions= Suspensions are different from solutions: the **particles being mixed are different sizes** with the particles being **suspended** being **bigger**. When a suspension is **left long enough** the suspended particles will **settle** to the bottom of the container. The substance that settles to the bottom is called a **sediment**. =3. Colloids= Colloids fit somewhere between solutions and suspensions: the particles in a colloid are big enough that they do not dissolve but small enough that they take a very long time to settle. Solids, liquids and gases form colloids that are know by different names:
 * SOLS** = solid spread through a liquid (eg blood)
 * EMULSIONS** = liquid spread through a liquid (eg milk)
 * GELS** = liquid spread through a solid (eg jelly)
 * SMOKE** = solid spread through a gas (eg smoke)
 * MIST** = liquid spread through a gas (eg fog)