1. Separating Mixtures

3. Mixing sulphur and iron......how could you separate this mixture?

4. Separating Mixtures

5. Do not put magnetic directly on iron Hold the magnet below the Petri dish Magnet Petri dish Sulphur + Iron mixture

6. Separating Mixtures You’re stranded on a desert island surrounded by sea water, sadly your science teacher is lost at sea but luckily all your science equipment has washed up......how could you separate a mixture of sand, salt and water to get drinking water?

7. Goal: to extract clean fresh water Come up with a plan, you will need: -A list of equipment -A series of steps You should be able to explain your reasoning for each step, use your science knowledge! You have 10 minutes

8. Ideas and Changes

9. Separating Mixtures: Filtration Mixture (salt, sand, water) filter paper filter funnel Mixture (salt and water)

10. Separating Mixtures: Evaporation Mixture (salt and water) Evaporating dish Bunsen burner Water

11. Separating Mixtures: Distillation Bunsen burner What is happening here? Mixture (salt and water) Water Vapour Water

12. Separating Mixtures – Solid and Liquid Separate a mixture of sand, copper sulphate and water. Filtration Evaporation

13. Draw a diagram for filtration and evaporation Separating Mixtures: Solids and Liquids 1.Filtration: method of separating an insoluble solid from a solution

14. Draw a diagram for filtration and evaporation Separating Mixtures: Solids and Liquids 2. Evaporation: method of separating a soluble solid from a solution

15. Filtration, Evaporation and Distillation http://www.bbc.co.uk/learningzone/clips/separ ating-mixtures-of-materials/2295.html

16. Separating Mixtures - Liquids How could we separate a mixture of water and alcohol? Alcohol boils at 78  C Water boils at ?  C If you heated a mixture of water and alcohol which would boil first?

17. Separating Mixtures - Liquids How could we prove we have separated the water and alcohol?

18. Separating Mixtures: Centrifuging http://www.absorblearning.com/media/attach ment.action?quick=ut&att=2208

19. http://www.tes.co.uk/teaching- resource/Evaporation-and- Condensation-Robinson-Crusoe- Makes-Drinking-Water-6085195/

20. http://www.bbc.co.uk/schools/ks3bitesize/science/chemical_mate rial_behaviour/compounds_mixtures/activity.shtml