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QOD #33

QOD #33. What is the difference between a solvent and solute?. QOD #34. Describe how you would separate mixture of metal and plastic paperclips. (Assume the metal paperclips are magnetic.). Separating Mixtures. 10-13-14. 1 . Hand Sorting Separating mixtures with your hands.

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QOD #33

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  1. QOD #33 • What is the difference between a solvent and solute?

  2. QOD #34 • Describe how you would separate mixture of metal and plastic paperclips. (Assume the metal paperclips are magnetic.)

  3. Separating Mixtures 10-13-14

  4. 1. Hand Sorting Separating mixtures with your hands. Ex: separating pop corn kernels, black beans & rice Pro: Don’t need tools Con: Can take a while

  5. 2. Using a Magnet • Using the magnetic property of a substance to separate a mixture • Pulls out anything that will attract to a magnet. Ex: Iron Filings & Sand Pro: fast Con: Need a magnet & not all materials are magnetic

  6. 3. Dissolving a Substance Mixing substances in water to separate the one that dissolves. Ex: Sand & Sugar

  7. 4. Filtration • Separating by size • Allowing liquids or smaller items to pass through a filter, leaving a larger substance on the other side. Ex 1: Sand & Water Ex 2: Sand and pebbles

  8. 5. Evaporation/Boiling Separation by changing a liquid to a gas to leave behind a dissolved substance Ex: Sugar and water

  9. 6. Chromatography Separating colored mixtures. Ex: Black marker

  10. QOD #35 • How would you separate a mixture of sand and sugar? Give me step by step directions!

  11. Separating Mixtures - Challenge! You have a mixture of coffee grounds, salt, paperclips, and beans and you need each part separated. • Step 1: Plan with your partner how you are going to separate each part and write down your numbered steps. • Step 2: Begin separating your mixtures.

  12. Challenge! You have a mixture of coffee, salt, and beans and you need each part separated. • Step 1: Plan with your partner how you are going to separate each part and write down your numbered steps. • Step 2: Begin separating your mixtures.

  13. Separation Questions • Glue the questions into your notebook. • Answer the questions in your notebook on the LINES of your paper – not on the question paper. Answer each question using PQPA!

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