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- Water purification - AT
Science
Year 7
Satisfactory
Water purification
![](/media/6049/science-7-at-2019-362-water-purification_page_1.png)
Uses scientific terminology to classify the mixture and identify its components 2 Annotation 2
Describes filter materials used and explains their intended effects 3 Annotation 3
Recognises limitations of filtration process 4 Annotation 4
Displays photographs to illustrate experimental setup 5 Annotation 5
Describes step-by-step procedure of filter preparation
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Annotations
-
1
Annotation 1
Uses scientific terminology to classify the mixture and identify its components -
2
Annotation 2
Describes filter materials used and explains their intended effects -
3
Annotation 3
Recognises limitations of filtration process -
4
Annotation 4
Displays photographs to illustrate experimental setup -
5
Annotation 5
Describes step-by-step procedure of filter preparation
![](/media/6048/science-7-at-2019-362-water-purification_page_2.png)
Records observations during separate trials in tabulated form 2 Annotation 2
Lists modifications performed between trials 3 Annotation 3
Describes filter layout and explains reasoning for sequence of layers 4 Annotation 4
Demonstrates understanding of fair test 5 Annotation 5
Uses evidence to support conclusion 6 Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability
-
Annotations
-
1
Annotation 1
Records observations during separate trials in tabulated form -
2
Annotation 2
Lists modifications performed between trials -
3
Annotation 3
Describes filter layout and explains reasoning for sequence of layers -
4
Annotation 4
Demonstrates understanding of fair test -
5
Annotation 5
Uses evidence to support conclusion -
6
Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability
Above satisfactory
Water purification
![](/media/6046/science-7-ab-2019-358-water-purification_page_1.png)
Uses scientific terminology to classify mixture and identify components 2 Annotation 2
Describes filter materials and explains intended effects 3 Annotation 3
Explains in detail function of charcoal 4 Annotation 4
Recognises change in classification of mixture as result of filtration 5 Annotation 5
Explains in detail how a physical effect involving light can be used to test the effectiveness of the procedure
-
Annotations
-
1
Annotation 1
Uses scientific terminology to classify mixture and identify components -
2
Annotation 2
Describes filter materials and explains intended effects -
3
Annotation 3
Explains in detail function of charcoal -
4
Annotation 4
Recognises change in classification of mixture as result of filtration -
5
Annotation 5
Explains in detail how a physical effect involving light can be used to test the effectiveness of the procedure
![](/media/6047/science-7-ab-2019-358-water-purification_page_2.png)
Describes step-by-step procedure of filter preparation 2 Annotation 2
Records observations during separate trials in tabulated form 3 Annotation 3
Describes in detail how experimental design was modified including reasoning for each change
-
Annotations
-
1
Annotation 1
Describes step-by-step procedure of filter preparation -
2
Annotation 2
Records observations during separate trials in tabulated form -
3
Annotation 3
Describes in detail how experimental design was modified including reasoning for each change
![](/media/6044/science-7-ab-2019-358-water-purification_page_3.png)
Gives detailed observations of results after modification 2 Annotation 2
Displays photographs with captions to illustrate experimental setup
-
Annotations
-
1
Annotation 1
Gives detailed observations of results after modification -
2
Annotation 2
Displays photographs with captions to illustrate experimental setup
![](/media/6045/science-7-ab-2019-358-water-purification_page_4.png)
Uses scientific reasoning to explain observations 2 Annotation 2
Explains why experiment was not a fair test and how this limits insights that can be gained 3 Annotation 3
Recognises and analyses a design flaw of the filter 4 Annotation 4
Uses scientific reasoning to justify a proposed improvement to the design 5 Annotation 5
Uses evidence to support conclusion 6 Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability
-
Annotations
-
1
Annotation 1
Uses scientific reasoning to explain observations -
2
Annotation 2
Explains why experiment was not a fair test and how this limits insights that can be gained -
3
Annotation 3
Recognises and analyses a design flaw of the filter -
4
Annotation 4
Uses scientific reasoning to justify a proposed improvement to the design -
5
Annotation 5
Uses evidence to support conclusion -
6
Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability
Satisfactory
Water purification
![](/media/6049/science-7-at-2019-362-water-purification_page_1.png)
Uses scientific terminology to classify the mixture and identify its components 2 Annotation 2
Describes filter materials used and explains their intended effects 3 Annotation 3
Recognises limitations of filtration process 4 Annotation 4
Displays photographs to illustrate experimental setup 5 Annotation 5
Describes step-by-step procedure of filter preparation
-
Annotations
-
1
Annotation 1
Uses scientific terminology to classify the mixture and identify its components -
2
Annotation 2
Describes filter materials used and explains their intended effects -
3
Annotation 3
Recognises limitations of filtration process -
4
Annotation 4
Displays photographs to illustrate experimental setup -
5
Annotation 5
Describes step-by-step procedure of filter preparation
![](/media/6048/science-7-at-2019-362-water-purification_page_2.png)
Records observations during separate trials in tabulated form 2 Annotation 2
Lists modifications performed between trials 3 Annotation 3
Describes filter layout and explains reasoning for sequence of layers 4 Annotation 4
Demonstrates understanding of fair test 5 Annotation 5
Uses evidence to support conclusion 6 Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability
-
Annotations
-
1
Annotation 1
Records observations during separate trials in tabulated form -
2
Annotation 2
Lists modifications performed between trials -
3
Annotation 3
Describes filter layout and explains reasoning for sequence of layers -
4
Annotation 4
Demonstrates understanding of fair test -
5
Annotation 5
Uses evidence to support conclusion -
6
Annotation 6
Suggests improvement to method including additional steps to guarantee safe potability