# Natural Sciences Grade 9 Paper 1 November Mock 2026 Memo

> Grade 9 Natural Sciences Paper 1 memorandum from the November Mock Exam 2026, 8 pages. Read online or get the free PDF download, question paper linked when available.

- Page: https://www.hlayiso.com/library/grade-9-natural-sciences-2026-november-mock-exam-memorandum/15e7fa56-78c1-400e-80fd-a2c43f34b162
- Updated: 2026-10-26
- Subject: Natural Sciences
- Grade: Grade 9
- Document type: Memorandum
- Year: 2026
- Exam period: November Mock Exam
- Paper: 1
- Publisher: Hlayiso
- Curriculum: CAPS
- Pages: 8

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## About this document

Natural Sciences · Grade 9 · November Mock Exam · 2026. Memorandum, 8 pages. Read online or download the PDF.

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## Document text

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### Page 1

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Mock
hlayiso mock exams
Practice Series:
Grade 9 Exam Preparation
WWW.HLAYISO.COM
SENIOR PHASE
END-OF-YEAR EXAMINATION
GRADE 9
NATURAL SCIENCES
NOVEMBER 2026 (MOCK)
MARKING GUIDELINES
MARKS: 100
These marking guidelines consist of 8 pages.

### Page 2

Natural Sciences
2
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
GENERAL MARKING GUIDELINES
1. One tick (✓) = one mark. Accept answers that are worded differently but are scientifically
correct.
2. Where a question asks for a set number of answers (e.g. TWO factors), mark only the
FIRST answers given, up to that number.
3. Calculations: award marks for the formula/substitution and for the final answer with the
correct unit, as shown. If the unit is omitted or wrong, deduct 1 mark only ONCE per
question.
4. Consistent accuracy (CA): where an incorrect answer from an earlier question is used
correctly in a later step, the later step is marked positively.
5. Spelling: accept phonetically correct spelling of scientific terms, unless the misspelt word
has a different scientific meaning (e.g. lava/larva).
6. Graphs and drawings: mark according to the criteria given in the memo.
COGNITIVE LEVELS (approximate):
Lower order (recall) 37 marks, middle order (understanding and routine application) 48 marks,
higher order (analysis, explanation, evaluation, investigation skills) 15 marks.
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### Page 3

Natural Sciences
3
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
SECTION A
QUESTION 1
1.1
C ✓
magnetic force acts over a distance
(1)
1.2
B ✓
weight is a force, measured in newtons
(1)
1.3
B ✓
the conductor gives the charge a safe path to earth
(1)
1.4
A ✓
resistance increases with length and decreases with
thickness
(1)
1.5
D ✓
3×1,5 = 4,5 V
(1)
1.6
B ✓
each bulb has its own path
(1)
1.7
B ✓
2 kW×0,5 h×R3,00 = R3,00
(1)
1.8
A ✓
(1)
1.9
D ✓
(1)
1.10
D ✓
blue stars are the hottest
(1)
[10]
QUESTION 2
2.1
Friction / frictional force ✓
(1)
2.2
Resistor (accept: rheostat / variable resistor) ✓
(1)
2.3
Transformer ✓
(1)
2.4
Ore ✓
(1)
2.5
Supernova ✓
(1)
[5]
QUESTION 3
3.1
C ✓
(1)
3.2
F ✓
(1)
3.3
E ✓
(1)
3.4
G ✓
(1)
3.5
D ✓
(1)
[5]
TOTAL SECTION A: 20
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### Page 4

Natural Sciences
4
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
SECTION B
QUESTION 4
4.1.1
Non-contact force (field force) ✓
(1)
4.1.2
Contact force ✓
(tension)
(1)
4.2.1
Electrons ✓
(1)
4.2.2
Electrons are transferred / rubbed off from the woollen cloth ✓onto the balloon.
✓
The balloon now has MORE electrons than protons, so it is negatively charged.
Do NOT award marks if the learner says protons/positive charges moved.
(2)
4.2.3
Repel ✓
Both balloons have the same (negative) charge and like charges repel. ✓
If “attract” is given, award 0 for the reason (negative marking).
(2)
4.3.1
Mass is the amount of matter in an object (measured in kg) and stays the same
everywhere. ✓
Weight is the gravitational force that a planet/the Earth exerts on an object
(measured in N) and depends on where the object is. ✓
(2)
4.3.2
w = m×g = 52×9,8 ✓
w = 509,6 N ✓
Deduct 1 mark if the unit (N) is omitted.
(2)
4.3.3
The same as ✓
(1)
4.4.1
Attract ✓
(1)
4.4.2
Criteria: field lines run from the N pole to the S pole and join the two magnets
(attraction pattern) ✓; arrows point from N to S ✓
S
N
S
N
Lines may not cross or touch. Award 0 if a repulsion pattern is drawn.
(2)
[15]
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### Page 5

Natural Sciences
5
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
QUESTION 5
5.1.1
It is the electrolyte; ✓it allows charges (ions) to move between the
electrodes/strips.
(1)
5.1.2
Connect more lemon cells in SERIES (to increase the potential difference) ✓
Accept: use more lemons connected in series / make a battery of lemon cells. Do not
accept “use a bigger lemon”.
(1)
5.2.1
How does the length of the nichrome wire (independent variable) affect the
current (dependent variable)?
Both variables ✓; written as a question ✓
OR: What is the relationship between the length of a conductor and the
current/resistance?
(2)
5.2.2
Length of the (nichrome) wire ✓
(1)
5.2.3
ANY ONE: thickness of the wire / type of material (nichrome) / temperature /
number of cells (voltage of the battery) ✓
(1)
5.2.4
Suitable heading, e.g. Graph of current against length of nichrome wire ✓
x-axis: length of nichrome wire (cm) and y-axis: current (A), with units ✓
All five points plotted correctly ✓
Smooth curve through the points (do not join to the origin) ✓
0
10
20
30
40
50
60
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
Length of nichrome wire (cm)
Current (A)
Graph of current against length of nichrome wire
If the axes are swapped, max 3/4. A bar graph earns max 2/4 (heading and axes only).
(4)
5.2.5
As the length of the wire increases, the current decreases ✓
(because the resistance of the wire increases with length). ✓
Accept: The longer the conductor, the higher its resistance and the smaller the current.
(2)
[12]
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### Page 6

Natural Sciences
6
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
QUESTION 6
6.1.1
3 V ✓
(2×1,5 V)
(1)
6.1.2
Vtotal = VX +VY
3 = 1,8+VY ✓
VY = 1,2 V ✓
CA from 6.1.1.
(2)
6.1.3
0,3 A ✓
In a series circuit the current is the same at every point (there is only one path
for the current). ✓
(2)
6.2.1
0,4 A ✓
(the total current divides equally between the two identical bulbs:
0,8÷2)
(1)
6.2.2
3 V ✓
(components in parallel have the same potential difference as the
battery)
(1)
6.2.3
Bulb Q stays on / keeps glowing (with the same brightness). ✓
Q is on a separate (parallel) path that is still a complete circuit / still connected
to the battery. ✓
If “Q goes out” is given, award 0 for the explanation.
(2)
6.3
A
S
Criteria: battery of two cells and a closed switch in the main circuit ✓; two
bulbs in parallel (two separate paths) ✓;
ammeter in SERIES in the main
(unbranched) part of the circuit ✓
Correct circuit symbols must be used; deduct 1 mark if a picture is drawn instead of
symbols. An open switch earns 0 for the battery/switch tick.
(3)
[12]
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### Page 7

Natural Sciences
7
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
QUESTION 7
7.1.1
1: Turbine ✓
2: Generator ✓
(2)
7.1.2
ANY ONE: burning coal releases carbon dioxide (a greenhouse gas) which
adds to global warming / releases smoke, soot, sulfur dioxide that cause air
pollution and acid rain / coal mining damages the land / coal is non-renewable
✓
(1)
7.1.3
Uranium ✓
(accept: uranium-235 / radioactive fuel)
(1)
7.2.1
2200÷1000 = 2,2 kW ✓
(1)
7.2.2
15 min = 15
60 = 0,25 h ✓
Cost = 2,2×0,25×3,20 ✓
Cost = R1,76 ✓
CA from 7.2.1. If 15 h is used: R105,60 earns max 2/3. Accept 176 cents.
(3)
7.2.3
Cost = 3×4×30×3,20 ✓
Cost = R1 152,00 ✓
OR: per day 3×4×3,20 = R38,40; ×30 = R1152,00.
(2)
7.2.4
ANY ONE: install a solar water heater / use a geyser timer or switch the geyser
off when it is not needed / lower the geyser thermostat temperature / insulate
the geyser and hot-water pipes (geyser blanket) / take shorter showers ✓
(1)
[11]
QUESTION 8
8.1.1
B: Biosphere ✓
D: Lithosphere ✓
(2)
8.1.2
Plants take in carbon dioxide from the atmosphere for photosynthesis ✓and
release oxygen into the atmosphere. ✓
Accept: plants release water vapour into the air (transpiration) for 1 mark.
(2)
8.1.3
Hydrosphere and lithosphere ✓
(both needed for the mark)
(1)
8.2.1
X: Sedimentary rock ✓
Y: Metamorphic rock ✓
(2)
8.2.2
P: Cooling / solidification / crystallisation ✓
Q: Heat and pressure (metamorphism) ✓
(2)
8.2.3
ANY ONE: granite / basalt / pumice / obsidian / dolerite ✓
(1)
8.2.4
ANY TWO: temperature changes (heating and cooling) / water (rain, freezing
of water in cracks) / wind / plants (roots) and animals / type (hardness) of the
rock / chemicals such as acids in rainwater ✓✓
(2)
[12]
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### Page 8

Natural Sciences
8
Senior Phase – Marking Guidelines
Hlayiso/Mock 2026
QUESTION 9
9.1
Open-cast (open-pit / surface / strip) mining ✓
(1)
9.2
Chemical ✓
(1)
9.3
The acidic water pollutes the streams / rivers / groundwater ✓and kills fish,
plants and other organisms in the water / makes the water unsafe for people,
animals and crops. ✓
Accept: acid mine drainage dissolves harmful metals that poison living things.
(2)
9.4
ANY TWO: fill in the pit and replace the topsoil / plant vegetation (rehabilitate
the land) / treat or neutralise the acidic water before it reaches the streams /
cover or remove the waste dumps to stop dust / monitor the water quality after
closure ✓✓
(2)
[6]
QUESTION 10
10.1
B: Stratosphere ✓
C: Mesosphere ✓
(2)
10.2
−56 °C✓
(accept −55 °Cto −60 °C)
(1)
10.3
B ✓
It absorbs (filters out) harmful ultraviolet (UV) radiation from the Sun, which
causes skin cancer / damages living cells. ✓
(2)
10.4
Greenhouse gases absorb the heat (infrared radiation) given off by the Earth’s
surface ✓and re-radiate (trap) some of it back to the Earth, so heat cannot
escape into space. ✓
(2)
10.5
ANY ONE: melting of ice caps/glaciers and a rise in sea level / flooding of
coastal areas / more droughts or extreme weather / loss of habitats and
extinction of species / crop failure ✓
(1)
[8]
QUESTION 11
11.1
11.1.1: Main-sequence star (accept: star / yellow star) ✓
11.1.2: White dwarf (accept: planetary nebula, then white dwarf / planetary
nebula) ✓
Do not accept black hole or neutron star for a Sun-like star.
(2)
11.2
Nuclear fusion ✓
Hydrogen nuclei join (fuse) to form helium, releasing a large amount of energy
(heat and light). ✓
(2)
[4]
TOTAL SECTION B: 80
GRAND TOTAL: 100
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