NCEA Level 1 Science (90190) 2007 — page 1 of 3
Assessment Schedule – 2007
Science: Describe aspects of geology (90190)
Evidence Statement
Q
Achievement
1(a)
Formed from molten material (either as
lava or magma).
1(b)
States that gabbro forms underground/
slow cooling and andesite at the
surface/ fast cooling.
Or may state gabbro is plutonic and
andesite is volcanic.
Or gabbro is intrusive and andesite is
extrusive.
Or gabbro is formed from magma and
andesite is formed from lava.
Or gabbro has large crystals/ coarse
grain and andesite has small crystals/
fine grains.
Achievement with Merit
Achievement with Excellence
Relates 2 aspects of gabbro and
andesite formation:
1. Place
 Volcanic/ extrusive/ above ground
Plutonic/ intrusive/ underground
2. Cooling rate
Relates all 3 aspects:
1. Place
2. Cooling rate
3. Crystal size
Magma (gabbro) and lava (andesite) need
to be stated.

Gabbro slow cooling and andesite
fast cooling.
3. Crystal size
 Gabbro has large crystals and
andesite has small crystals.
1(c)
Describes as one of:
• A mineral
• SiO2, Silica dioxide
• Silica is quartz
• A chemical compound
1(d)
States that basalt is silica poor.
2(a)
Small fragments of rocks.
2(b)
Movement of particles from one place
to another.
Movement of particles from one place
to another plus reference to an agent,
eg rivers, glaciers, wind, gravity.
2(c)
States that mud particles can be
transported further (position)
or
mud particles are tiny (size)
or
Low energy environment or low speed
of water flow (speed).
Mud particles are tiny (size)
plus:
Low energy environment or low speed
of water flow (speed)
or
States that mud particles can be
transported further (position).
Mudstone is made from very small
particles of mud (sediment). Because these
particles are so small they take much less
energy to move them compared with larger
rock sediments such as sand. Small
particles, therefore, travel further and only
drop out of suspension and become
deposited when the energy is very low.
(size + speed + position)
Position must imply distance.
Smaller particles travel further than larger
particles.
2(d)
States that plant material (organic
matter) is:
buried
or
compacted or compressed
or
Describes environment – in a swamp or
lack of oxygen or plant material unable
to decompose
or
heat and pressure only if linked to high
grade coal.
States that plant material is buried.
plus
Compaction or compression
(Not pressure)
or
environment.
States that plant material is buried.
plus
Compaction or compression
and
Environment: in a swamp or lack of
oxygen or plant material unable to
decompose or heat & pressure
(metamorphic process).
Silica (quartz) is a light-coloured
mineral. Basalt has little quartz.
NCEA Level 1 Science (90190) 2007 — page 2 of 3
3(a)
(i)
(ii)
States heat and pressure.
(evidence can be found in 3a ii)
note: temperature or extreme temp
not OK
high temp fine
3(b)
Parent rock is limestone
or
Made of CaCO3 or calcite
or
marble harder or limestone is softer
or
More crystalline (has crystals) than
parent rock.
or
Marble is stronger.
4(a)
Schist, limestone, mudstone,
sandstone
or
B D A C.
4(b)
Refer to table.
One rock and event or consequence.
Rock
Event
Parent rock is limestone
and
Marble is harder
or
Marble is more crystalline.
Refer to table.
One rock, event and consequence .
 Deep burial
 subduction
 Metamorphism
 Heat & pressure
Limestone
 Uplift
 Mountain building
 Ocean basin
forming
 Polar caps melting
 (Shallow) seas
Sandstone
 Uplift
 Mountain building
 Polar caps
reforming
Coding on scripts:
Rock = R, Event = E, Consequence = C
Recognises that rocks containing
the same fossils are the same age
regardless of where the rocks are
located.
Refer to table.
Two rocks, event and consequence.
Consequence
Schist
Mudstone
4(c)
There are two main pathways (one
required):
1. Sedimentary rocks become deeply
buried through earth movements
or subduction.
or
As burial increases, heat and
pressure transformed into
metamorphic rock.
or
2. Sedimentary rock is heated by
magma and minerals are
recrystallised (minerals
realigned).
or
States regional or contact
metamorphism.
 Low energy
environments
 Sea level rising
 High energy
environments
 Sea level falling
Can include the formation of schist
from shale.
NCEA Level 1 Science (90190) 2007 — page 3 of 3
Judgement Statement
Achievement
Achievement with Merit
Achievement with Excellence
SEVEN questions answered correctly.
EIGHT questions answered correctly,
including at least FOUR at Merit level.
NINE questions answered correctly,
including at least TWO at Excellence
level and at least THREE at Merit level.
Minimum of 7  A
Minimum of 4  M + 4  A
Minimum of 2  E + 3  M + 4  A