Methods in separating mixture and solution (CAI)
Here are 3 potential responses to the questions: 1. Common household chemicals like cleaners, air fresheners, and personal care products contain many different chemical components. Researching each component can help understand their individual and combined impacts on the environment if released. This knowledge helps make more informed choices about product selection and disposal. 2. Testing the effects of chemical components is important because mixtures can have properties different than their individual parts. Components that may seem harmless alone could interact in ways that harm the environment. Understanding these interactions helps identify risks and opportunities to formulate safer products. 3. Knowledge of mixtures and solutions provides a framework for analyzing complex environmental systems. The atmosphere, oceans, and soil contain many interacting substances from both natural
Methods in separating mixture and solution (CAI)
- 5. What you’ll need? • Small soft drink bottle • Water • Food colouring • 2 tablespoons of cooking oil • Dish washing liquid or detergent
- 6. Procedure: • Add a few drops of food colouring to the water. • Pour about 2 tablespoons of the coloured water along with the 2 tablespoons of cooking oil into the small soft drink bottle. • Screw the lid on tight and shake the bottle as hard as you can. • Put the bottle back down and have a look, it may have seemed as though the liquids were mixing together but the oil will float back to the top.
- 8. FILTRATION used to separate an insoluble solid from a liquid. The solid remains in the filter paper and the liquid goes into the beaker. The liquid that passes through is the filtrate. The substance that is left in the filter paper is called the residue. VIDEO
- 9. MECHANICAL SEPARATION Involves the use of forceps, sieve, and other similar tools. Gravel and sand are separated by picking the gravel or passing the mixture into a wire screen. This process is called sieving. The use of magnets in separating sulfur powder and iron nails is appropriate when metal is involved. VIDEO
- 10. DECANTATION Is a method where solids of a suspension are made to settle down and the liquid materials poured off. VIDEO
- 11. CENTRIFUGATION Is a motor-driven machine that speeds up the settling of the precipitate. Uses the centripetal force developed through the rotation of the apparatus. The rotation brings the precipitate to the bottom of the tube, then the centrifugate or supernatant liquid poured off. VIDEO
- 12. DISTILLATION is the evaporation and condensation of volatile liquids. It uses a condenser to transform a gas into a liquid. The more volatile liquid boils and evaporate first, then it is condensed on the cooled area of the set-up. The distillate is the liquid formed after condensation. VIDEO
- 13. FRACTIONAL DISTILLATION Is a special type of distillation used to separate a mixture of liquids with different boiling points. Different liquid boil at different temperatures. When heated, they boil off and condense at different times. The apparatus features a fractioning column, which ensures that only the liquid boils at its boiling point will pass through the condenser. VIDEO
- 15. EASY
- 16. Direction: Choose the letter of the correct answer. 1. It is a method where solids of a suspension are made to settle down and the liquid material is poured off. a. Centrifugation b. Decantation c. Filtration
- 17. 2. What process involves the use of forceps, sieve, and other similar tools? a. Distillation b. Filtration c. Mechanical Separation
- 18. 3. ____________ is the evaporation and condensation of volatile liquids. a.Distillation b. Distillate c. Fractional Distillation
- 19. 4. It is used to separate an insoluble solid from a liquid. A .Residue b. Filtration c. Filtrate
- 20. 5. What method uses the centripetal force developed through the rotation of the apparatus? a. Centrifugate b. Centrifuge c. Centrifugation
- 23. Directions: Use the describing wheel to summarize the different methods of separating mixtures. Methods of Separating mixtures & solution
- 27. 1. Make a list of all the household chemicals that you use at home. Research on the possible effects of their components to the environment.
- 28. 2. Why is there a need to research and test the effects of the components of those substances?
- 29. 3. How will your knowledge of mixtures and solutions help you understand the environment?