Satisfactory
Mixtures and solutions
1
2
3
-
Annotations
-
1
Annotation 1
Provides labelled diagram of filtration technique -
2
Annotation 2
Describes viable method to separate sand from mixture -
3
Annotation 3
Describes viable method to separate salt and water while recognising its limitation
1
2
3
-
Annotations
-
1
Annotation 1
Identifies mixed and pure components of the system -
2
Annotation 2
Explains cause for observed vertical order of liquids -
3
Annotation 3
Identifies and describes related phenomenon observed in everyday life
Above satisfactory
Mixtures and solutions
1
2
3
4
-
Annotations
-
1
Annotation 1
Describes viable method to separate sand from mixture -
2
Annotation 2
Explains why distillation is preferred technique to separate and collect water and salt -
3
Annotation 3
Provides labelled diagram of distillation apparatus -
4
Annotation 4
Demonstrates understanding of transformation processes occurring during distillation and familiarity with scientific terminology
1
2
3
4
-
Annotations
-
1
Annotation 1
Refers to immiscibility of oil and water to explain observed separation -
2
Annotation 2
Demonstrates basic understanding of why two components mixed -
3
Annotation 3
Explains cause of observed vertical order of liquids -
4
Annotation 4
Uses evidence from images to justify identification of liquids
Satisfactory
Mixtures and solutions
1
2
3
-
Annotations
-
1
Annotation 1
Provides labelled diagram of filtration technique -
2
Annotation 2
Describes viable method to separate sand from mixture -
3
Annotation 3
Describes viable method to separate salt and water while recognising its limitation
1
2
3
-
Annotations
-
1
Annotation 1
Identifies mixed and pure components of the system -
2
Annotation 2
Explains cause for observed vertical order of liquids -
3
Annotation 3
Identifies and describes related phenomenon observed in everyday life