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Separation Techniques Review

Separation Techniques Review. - Grab your sheets. - Check off everything you had correct - Update what you had wrong. Separation Techniques Review. IRON FILINGS: Best Separation Method: Using a magnet Description of how you would separate iron filings from the mixture

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Separation Techniques Review

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  1. Separation Techniques Review - Grab your sheets. - Check off everything you had correct - Update what you had wrong.

  2. Separation Techniques Review • IRON FILINGS: • Best Separation Method: • Using a magnet • Description of how you would separate iron filings from the mixture • Insert a magnet into the mixture. • Using the attractive force between the magnet and the iron filings, you can collect and remove the iron fillings from the mixture.

  3. Separation Techniques Review • STYROFOAM BEADS: • Best Separation Method: • Using FLOTATION • Description of how you would separate Styrofoam beads from the mixture: • Combine the mixture with water. • Allow the mixture to settle. • The less dense material (Styrofoam) will float and can be scooped out of the mixture easily using tweezers, a scoop, or your fingers.

  4. Separation Techniques Review • SAND: • Best Separation Method: • Using DISSOLVING and FILTRATION • Description of how you would separate Sand from the mixture: • Combine the mixture with water • The salt will dissolve leaving sand and a salt solution • Filter out the sand with filter paper

  5. Separation Techniques Review • SALT: • Best Separation Method: • Using EVAPORATION • Description of how you would separate iron filings from the mixture • To separate the water from the salt, boil the water so the water converts to steam. • The salt will remain on the surface with all the water having been evaporated.

  6. Separation Techniques from your Lab Separating Popcorn Kernels & Flour: SIEVE Separating Muddy Water: FILTER Separating Styrofoam & Marbles: FLOTATION Separating Paper Clips & Plastic: MAGNETISM

  7. Review…how well do you do? 1. Use the following words to complete a visual organizer, showing the relationships between and among the words provided. Use each word only once. Pure Substances, Matter, Solutions, Mixtures, Mechanical Mixtures, Suspensions and Colloids

  8. Review…how well do you do? 2. Mixtures can be made with solids, liquids or gases. The kind of mixture or solution that is referred to as heterogeneous is a mixture or solution which … A. is clear B. is cloudy C. appears as a single substance D. all the parts are visible

  9. Review…how well do you do? 3. When a substance, such as sugar, dissolves in water, the particles intermingle. This is possible because the particles of sugar ... A. are pure B. have strong attractions to each other C. have spaces between them D. are vaporized

  10. Review…how well do you do? 4. When a substance, such as sugar, dissolves in water, the particles intermingle. This is possible because the particles of sugar ... A. are pure B. have strong attractions to each other C. have spaces between them D. are vaporized

  11. Review…how well do you do? 5. In concentrated solutions, there are large amounts of ... A. empty spaces B. diluted particles C. solvent in the solute D. solute in the solvent

  12. Review…how well do you do? 6. The 'desert tent' method of separation uses a process that involves evaporation and condensation. This process is called ... A) distillation B) desalination C) dehydration D) decomposition

  13. Review…how well do you do? 7. The process of separating the different products of petroleum is known as fractional distillation. The reason that this method is able to separate the different fractions of the petroleum product is because each substance ... A) condenses at a different temperature B) evaporates at a different temperature C) condenses at the same temperature D) evaporates at the same temperature

  14. Review…how well do you do? • 8. Most underground mixtures are solid rock. To separate the different minerals from each other a number of steps are • needed. To mine gold the following process must occur in the correct order. Which answer represents the correct order? • 1. chemicals are then added to dissolve the ore • 2. the ore is blasted and then crushed • 3. the ore is mixed with water to create a fine suspension • 4. the ore is released from the solution when zinc is added • A) 1 2 3 4 • B) 3 1 4 2 • C) 2 3 1 4 • D) 4 2 3 1

  15. Good luck studying!

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