| Test Your Colloids at Home! Testing your colloids at home is easy! |
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Here is what you need: | |
| 1. | A red laser pointer | |
| 2. | An uncolored, smooth-sided drinking glass | |
| 3. | Distilled water | |
| 4. | Colloidal fluid |
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| 1. | The strength of the beam indicates the strength of the colloid. As the concentration increases, so does the strength of the beam. | |
| 2. | A sharp, even beam indicates the even size of the colloidal particles. | |
| 3. | Evenly sized particles uniformly dispersed cause a very crisp, light beam. | |
| 4. | An uneven, lumpy line reveals coagulated particles with compromised colloidal features. | |
| In chemistry, this test is referred to as the Tyndall Test named after the renown chemist Geoff Tyndall. | ||
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