15214902
Description
Flashcards by Sean Sacriz, updated more than 1 year ago
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Created by Sean Sacriz
about 6 years ago
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| Question | Answer |
| What is decanting? | When you pour off top layer of settled suspension. |
| What is sieving? | Using device with holes to separate different sized substances in a mixture. |
| What is centrifugation? | Spinning unsettled suspension at high speeds to settle it out. |
| What is filtration? | Using device with very fine pores to separate different sized substances. |
| Benefits of decanting? | Simple and easy to do. |
| Limitations of decanting? | Can only be used on settled suspensions. |
| Benefits of sieving? | Simple and easy to do. |
| Limitations of sieving? | Can only be used on different sized substances where only 1 can fit into the hole. |
| Benefits of centrifugation? | One of the few ways to settle out a suspension that may never settle. |
| Limitations of centrifugation? | Hard to do, can only be used on unsettled suspensions. |
| Benefits of filtration? | Useful when a suspension can't be separated using gravity. Easy to do. |
| Limitations of filtration? | Can only be used when one substance can fit in the holes, and the other can't. |
| Examples of decanting? | Pouring off water from vegetables. Pouring wine into container, leaving sediment behind. |
| Examples of sieving? | Used to ensure only rocks of correct size go into rock crusher. To grade soil by size for classification. |
| Examples of filtration? | To separate coffee grounds from filter coffee. To separate dust from air using mask filter. |
| Examples of centrifugation? | Spin cycle of washing machine. Salad spinners to dry washed lettuce. |
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