Separation eLabBook
Understand the nature of pure substances and mixtures
SW9 Page 61
SciPad Page 27-28
Task 1
In your own words, describe what pure substances and Mixtures are:
X
Now, check http://www.dummies.com/how-to/content/how-to-distinguish-pure-substances-and-mixtures.html for your answer
Task 2
Give 3 examples for pure substances: X
3 examples for mixtures: X
Insert 1 photo for a pure substance and a mixture each.
Then label them.
Then Explain why the object in the photo is a pure substance, and why the object in the other photo is a mixture. X
Describe solutions
SW9 Page 62- 65
SciPad Page 31-32
Task 3
Write down the definition for: this website might help http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/chemical/detergentsrev3.shtml
Solute: X
Solvent: X
Solution: X
Suspension: X
Sediments: X
Soluble: X
Insoluble: X
Watch this dissolving video
http://www.youtube.com/watch?v=xdedxfhcpWo
Task 4
Suggest an example of dissolving, and name the solute, solvent and solution in your example.
X
Task 5
Carry out a dissolving experiment and put pictures in the space below to show the substances before and after dissolving.
Distinguish between dilute and concentrated solutions
SciPad Page 33-35
Show picture of a concentrated and a dilute solution below (the solutions have to be coloured)
See experiment from Scipad.
Task 6
Someone bought a bottle of pesticide concentrate for their vegetable garden. The bottle says dilution is 1:500. How will they carry this out? What will be the problem if they dilute it too much and also if they don’t dilute it enough? X
Understand that separation methods depend on differences in properties
Task 7
List some physical properties you have learned from the topic on MATTER.
e.g. density, X
How do pebbles different to sand? X
How does sand different to Iron sand? X
How does salt crystals different to flour? X
How does oil different to water? X
How would you separate the above mixtures? X
Describe the following separation methods – evaporation, filtration, decanting, distillation, magnetic separation, chromatography
SW9 Page 67, 70, 73, 74
SciPad Page 29, 30, 36, 38-41
Separating Techniques
http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/covalent_compounds/seperationrev1.shtml
http://www.docbrown.info/page01/ElCpdMix/EleCmdMix2.htm is a GCSE website that works through techniques plus notes.
Investigate how to best separate the following mixtures. Perform an experiment to demonstrate the technique you chose to separate each mixture. Add photos of each experiment.
Task 7
Iron filings from salt/sugar/stones.
Task 8
Salt from sand
Task 9
Isolate salt from water or isolate the water from salt
Task 10
Two immiscible liquids
Task 11
Two miscible liquids
Task 12
Ink into its constituent colours.
SW9 Page 61
SciPad Page 27-28
Task 1
In your own words, describe what pure substances and Mixtures are:
X
Now, check http://www.dummies.com/how-to/content/how-to-distinguish-pure-substances-and-mixtures.html for your answer
Task 2
Give 3 examples for pure substances: X
3 examples for mixtures: X
Insert 1 photo for a pure substance and a mixture each.
Then label them.
Then Explain why the object in the photo is a pure substance, and why the object in the other photo is a mixture. X
Describe solutions
SW9 Page 62- 65
SciPad Page 31-32
Task 3
Write down the definition for: this website might help http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/chemical/detergentsrev3.shtml
Solute: X
Solvent: X
Solution: X
Suspension: X
Sediments: X
Soluble: X
Insoluble: X
Watch this dissolving video
http://www.youtube.com/watch?v=xdedxfhcpWo
Task 4
Suggest an example of dissolving, and name the solute, solvent and solution in your example.
X
Task 5
Carry out a dissolving experiment and put pictures in the space below to show the substances before and after dissolving.
Distinguish between dilute and concentrated solutions
SciPad Page 33-35
Show picture of a concentrated and a dilute solution below (the solutions have to be coloured)
See experiment from Scipad.
Task 6
Someone bought a bottle of pesticide concentrate for their vegetable garden. The bottle says dilution is 1:500. How will they carry this out? What will be the problem if they dilute it too much and also if they don’t dilute it enough? X
Understand that separation methods depend on differences in properties
Task 7
List some physical properties you have learned from the topic on MATTER.
e.g. density, X
How do pebbles different to sand? X
How does sand different to Iron sand? X
How does salt crystals different to flour? X
How does oil different to water? X
How would you separate the above mixtures? X
Describe the following separation methods – evaporation, filtration, decanting, distillation, magnetic separation, chromatography
SW9 Page 67, 70, 73, 74
SciPad Page 29, 30, 36, 38-41
Separating Techniques
http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/covalent_compounds/seperationrev1.shtml
http://www.docbrown.info/page01/ElCpdMix/EleCmdMix2.htm is a GCSE website that works through techniques plus notes.
Investigate how to best separate the following mixtures. Perform an experiment to demonstrate the technique you chose to separate each mixture. Add photos of each experiment.
Task 7
Iron filings from salt/sugar/stones.
Task 8
Salt from sand
Task 9
Isolate salt from water or isolate the water from salt
Task 10
Two immiscible liquids
Task 11
Two miscible liquids
Task 12
Ink into its constituent colours.