1.
(a)
Award ONE mark for:
1
 talc.
(b)
Award ONE mark for a response indicating that granite was the only rock
not to be scratched by the objects:
1
 none of the objects were able to scratch granite, but some could scratch the other rocks;
 all the other rocks were scratched by at least one object;
 fewer objects/tools could scratch granite than the others.
Allow:
an absolute response that does not describe whether the other rocks were scratched:
 no object could scratch granite;
 it could not be scratched.
Do not give credit for an insufficient
response that does not interpret the table:
 it only has crosses, where the other rocks
have at least one tick.
(c)
Award ONE mark for all the rocks written in the correct place:
talc
(d)
marble
granite
Award ONE mark for:

(e)
sandstone
1
1
It was difficult to
scratch each rock
with the same force.
Award ONE mark for identifying that granite feels rough and is not permeable:
1
 granite is rough/not smooth; and
 granite is not permeable/water cannot pass through granite.
Do not give credit for a response that
includes incorrect science:
 water can pass through granite.
Do not give credit for an insufficient
response describing the results of the scratch
test:
 granite is hard to scratch.
[5]
2.
(a)
Award ONE mark for:
1m
 permeable
(b)
Award ONE mark for both:
1m
 sandstone;
and
 limestone.
(c)
Award ONE mark for:
1m
1
 granite.
(d)
Award ONE mark for a response that includes an appropriate interpretation of
the table, indicating that the hardest rock made a mark on all of the other rocks
and/or could not be scratched by any of the rocks:
1m
 the granite scratched the slate, the sandstone and the limestone;
 the granite was the only rock that scratched all of the other rocks;
 the other rocks could not scratch the granite.
Allow:
 it scratched all the others;
 it scratched more rocks than the others;
 none of the others could scratch it.
Do not give credit for an insufficient answer
that does not refer to the table:
 I know that granite is a hard rock.
Do not give credit for an insufficient
response:
 it said ‘no’ three times on the table;
 it has three ‘yes’ on the table.
3.
(a)
Award ONE mark for both correct:
1
True
The change is non-reversible. .............
False
The bubbles evaporate. .............
(b)
(c)
Award ONE mark for all three materials correctly classified:
Material
Solid, liquid or gas?
inside the
bubble
gas
vinegar
liquid
chalk rock
solid
Award ONE mark for:
1
1
 limestone;
 pumice.
Allow:
 chalk.
[3]
4.
(a)
Award ONE mark for:
1
(b)
Award ONE mark for:
all clay
1
D
mostly clay, some sand
A
mostly sand, some clay
B
2
all sand
C
(c)
Award ONE mark for a bar (or bar line) drawn for small stones
which is more than 250cm3 and less than or equal to 300cm3
1
(d)
Award ONE mark for:
1
 the long roots (they) take in/absorb/obtain water/moisture/dampness.
Allow:
 they anchor it/keep it in place.
Do not give credit for:
 drink/suck (water);
 produce water.
[4]
5.
(a)
Award ONE mark for:
1
 sea lettuce.
(b)
Award ONE mark for an unambiguous indication of:

permeable
strong
impermeable
1
rough
absorbent
[2]
6.
(a)
Award ONE mark for correctly identifying one rock which cannot be scratched
with a knife:
1
 granite.
(b)
Award ONE mark for correctly identifying all four rocks according to permeability:
permeable
sandstone
1
not permeable
granite
slate
marble
Do not give credit for:
 some of the rocks correctly classified [all
rocks need to be correctly classified to gain
credit].
(c)
Award ONE mark for correctly identifying how the rocks in group A
are different from the rocks in group B:
1
 they cannot be split into flat pieces.
Allow:
 slate can be split into flat pieces.
Do not give credit for:
 they are all rocks [given];
 by looking at the table.
[3]
3