filtration 🌨️

• What is the main objective of the unit on filtration?

  To understand how to separate mixtures.
• What are the key words associated with filtration?

  Filtrate, filter, residue.
• Why is it possible to separate mixtures?

  Because mixtures consist of substances with different properties.
• Why can a particle mixture be separated?

  Because the particles have different sizes or solubilities.
• When would you choose to use filtration?

  When separating an insoluble solid from a liquid.
• How can Sandeep find the solubility of zinc sulfate using filtration?

  By measuring the mass of the solid left after filtration.
• What is the process of filtration?

  It separates a liquid from an insoluble solid in a mixture.
• What happens to water particles during filtration?

  They pass through the filter paper.
• What is the filtrate in the context of filtration?

  The liquid that passes through the filter paper.
• What is the residue in filtration?

  The solid that remains on the filter paper after filtration.
• How would you separate sand from water using filtration?

  By pouring the mixture onto filter paper.
• What is one use of filtration in everyday life?

  Separating coffee solution from ground-up coffee beans.
• How do filters in cars work?

  They trap solid bits of dirt while allowing liquid oil to pass through.
• How does sand filtration make water safe to drink?

  By trapping dirt and allowing clean water to pass through.
• What is the purpose of a LifeStraw?

  To filter water by removing bacteria and parasites.
• How can you separate sand and salt from a mixture?

  By adding water, stirring, and filtering the mixture.
• What property allows sand and salt to be separated by filtration?

  Salt dissolves in water while sand does not.
• If Naomi adds 100 g of calcium chloride to water and filters it, what mass of residue remains?

  25 g of residue remains after filtering.
• How can you determine the most and least soluble substances from Naomi's experiment?

  By comparing the mass of undissolved solid after filtering.
• What are the steps to separate sand from water using filtration?

  1. Add water to the sand.
  2. Stir the mixture.
  3. Pour the mixture through filter paper.
  4. Collect sand on the filter paper; water passes through.
• What are the uses of filtration in various applications?

  • Separating coffee solution from coffee grounds.
  • Filtering dirt from oil in car engines.
  • Making water safe to drink using sand filters.
• What are the advantages and disadvantages of using a model to explain filtering?

  Advantages:

  • Visual representation of the process.
  • Helps in understanding complex concepts.

  
  

  Disadvantages:

  • May oversimplify the process.
  • Might not represent all variables accurately.