Real-world examples of separating mixtures using filtration.

📚 Quick Study Guide

• 🧪 Filtration is a separation technique used to separate solid particles from a liquid or gas using a filter medium that retains the solid particles but allows the liquid or gas to pass through.
• ⚗️ The mixture to be filtered is called the suspension or slurry.
• 💡 The liquid or gas that passes through the filter is called the filtrate.
• 🔬 Examples include: sand filtration in water purification, coffee brewing, air filtration in HVAC systems, and kidney dialysis.
• 🧫 Factors affecting filtration include particle size, filter pore size, viscosity, and pressure.

🧪 Practice Quiz

1. Which of the following is the BEST definition of filtration?

   1. A) A process of dissolving a solid in a liquid.
   2. B) A process of separating solids from liquids or gases using a filter.
   3. C) A process of mixing two liquids together.
   4. D) A process of boiling a liquid to remove impurities.

2. In water treatment plants, what is the PRIMARY purpose of sand filtration?

   1. A) To add minerals to the water.
   2. B) To remove large debris from the water.
   3. C) To remove fine particles and impurities from the water.
   4. D) To chlorinate the water.

3. Which of the following is an example of filtration used in the food and beverage industry?

   1. A) Baking a cake.
   2. B) Brewing coffee using a paper filter.
   3. C) Frying chicken.
   4. D) Boiling pasta.

4. In an air conditioning system, what does the air filter primarily remove?

   1. A) Humidity.
   2. B) Carbon dioxide.
   3. C) Dust and pollen.
   4. D) Oxygen.

5. What is the filtrate in the process of making coffee using a filter?

   1. A) The coffee grounds.
   2. B) The water.
   3. C) The brewed coffee.
   4. D) The paper filter.

6. Which of the following factors does NOT significantly affect the rate of filtration?

   1. A) Particle size.
   2. B) Filter pore size.
   3. C) The color of the liquid.
   4. D) Viscosity of the liquid.

7. In kidney dialysis, what is being filtered from the blood?

   1. A) Red blood cells.
   2. B) Excess water and waste products.
   3. C) Nutrients.
   4. D) Oxygen.