all thing about suspension
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Have you ever seen dust particles floating in a stream of sunlight? The dust you see in the air is an example of suspension. Discover this fascinating mixture, explore a special type of suspension, and see examples in this lesson.
Suspension in Science: Definition
If you have had the opportunity to go to the beach, you have probably felt grainy sand between your toes while in the water. If you take a scoop of sandy water, place it in a bottle, and try to shake it, what do you suppose will happen? Rather than dissolving in the water, the sand will float around and eventually settle to the bottom. This interaction between sand and water perfectly explains what a suspension is.
Suspension is a type of heterogeneous mixture where solid particles do not dissolve in a liquid solution. No matter how hard you shake or stir, think of suspended particles as stubborn substances unwilling to dissolve in a solution.
Let's step back for a minute and discuss the term mixture. In science, mixtures can fall under two broad categories: homogeneous and heterogeneous. Keep in mind that mixtures can involve the combination of either liquid, solid, or gas substances. As we go through the different types of mixtures, and relate this to suspensions, you can use this flowchart as a guide.
Homogeneous mixtures occur when individual substances are uniformly distributed in a given mixture. As shown in diagram 2, soapy water is a great example. When you add soap to water and shake it up to mix, a uniform, bubbly solution forms. Two individual substances (water and dish soap) evenly distribute and do not separate in this homogeneous solution.
Heterogeneous mixtures occur when there is non-uniformity with the substances present in a given mixture. In other words, heterogeneous mixtures contain different substances that physically remain separated from one another. Remember the sand and water example mentioned earlier? Well, this suspension is a great example of a heterogeneous mixture (diagram 2). You can visibly notice two substances (water and sand), non-uniform and physically remaining separated, in the sandy water.
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Suspension in Science: Definition
If you have had the opportunity to go to the beach, you have probably felt grainy sand between your toes while in the water. If you take a scoop of sandy water, place it in a bottle, and try to shake it, what do you suppose will happen? Rather than dissolving in the water, the sand will float around and eventually settle to the bottom. This interaction between sand and water perfectly explains what a suspension is.
Suspension is a type of heterogeneous mixture where solid particles do not dissolve in a liquid solution. No matter how hard you shake or stir, think of suspended particles as stubborn substances unwilling to dissolve in a solution.
Let's step back for a minute and discuss the term mixture. In science, mixtures can fall under two broad categories: homogeneous and heterogeneous. Keep in mind that mixtures can involve the combination of either liquid, solid, or gas substances. As we go through the different types of mixtures, and relate this to suspensions, you can use this flowchart as a guide.
Homogeneous mixtures occur when individual substances are uniformly distributed in a given mixture. As shown in diagram 2, soapy water is a great example. When you add soap to water and shake it up to mix, a uniform, bubbly solution forms. Two individual substances (water and dish soap) evenly distribute and do not separate in this homogeneous solution.
Heterogeneous mixtures occur when there is non-uniformity with the substances present in a given mixture. In other words, heterogeneous mixtures contain different substances that physically remain separated from one another. Remember the sand and water example mentioned earlier? Well, this suspension is a great example of a heterogeneous mixture (diagram 2). You can visibly notice two substances (water and sand), non-uniform and physically remaining separated, in the sandy water.
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