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Levels 3-7 - Test Papers

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2005 KS3 Science Mark Scheme Tier 3–6 Paper Two<br />

Tier<br />

3–6<br />

Q No<br />

5<br />

Part Mark Answer Accept Additional guidance<br />

a i<br />

3/2b<br />

1<br />

* the water or it went blue<br />

accept ‘it changed colour’<br />

accept ‘it got darker’<br />

accept ‘there were fewer crystals’<br />

accept ‘some of the crystals or copper sulphate<br />

disappeared’<br />

a ii<br />

3/2b<br />

1<br />

any one from<br />

* stir it<br />

* heat it<br />

* use hotter water<br />

* grind up or crush the crystals<br />

accept ‘use warm water’<br />

b<br />

3/2c<br />

1<br />

any one from<br />

* crystals<br />

* copper sulphate<br />

accept ‘solid’<br />

c i<br />

1/2k<br />

3/2b<br />

c ii<br />

1/2k<br />

3/2b<br />

c iii<br />

1/2j<br />

3/2b<br />

1<br />

1<br />

1<br />

* 10<br />

* Q<br />

* P and Q<br />

answers may be in either order<br />

both answers are required for the mark<br />

Total 6<br />

38

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