# Technical Sciences Grade 10 P2 November Mock 2026 Memo (Eng)

> Grade 10 Technical Sciences Paper 2 memorandum from the November Mock Exam 2026 (English), 8 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/grade-10-technical-sciences-2026-november-mock-exam-memorandum-paper-2/b76a028f-3bd3-41d4-8d0d-59f3c488156a
- Updated: 2026-10-29
- Subject: Technical Sciences
- Grade: Grade 10
- Language: English
- Document type: Memorandum
- Year: 2026
- Exam period: November Mock Exam
- Paper: 2
- Publisher: Hlayiso
- Curriculum: CAPS
- Pages: 8

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## About this document

Technical Sciences · Grade 10 · November Mock Exam · 2026 · English. Memorandum, 8 pages. Read online or download the PDF.

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## Matching paper and memo

- [Grade 10 Technical Sciences P2 November 2026 Mock](https://www.hlayiso.com/library/grade-10-technical-sciences-2026-november-mock-exam-question-paper-paper-2/985df505-a4d6-46de-ab4f-3df4c9507d41) — QP · 2026 · Eng

## Document text

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### Page 1

hlayiso mock exams
                             Practice Series:
                             Grade 10 Exam Preparation
                             WWW.HLAYISO.COM

                                  NATIONAL
                             SENIOR CERTIFICATE

                                    GRADE 10

                            TECHNICAL SCIENCES P2
                     NOVEMBER EXAMINATION 2026 (MOCK)
                              MARKING GUIDELINES

  MARKS: 150

                     These marking guidelines consist of 8 pages.

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### Page 2

Technical Sciences/P2                        2                               Hlayiso/Mock 2026
                                  NSC – Marking Guidelines

GENERAL MARKING GUIDELINES

  1. Calculations: Marks are awarded for the correct substitution and the correct final
     answer WITH the correct unit, as indicated by the ticks (✓).
  2. Units: Penalise an omitted or incorrect unit only ONCE per question.
  3. Names and formulae: Award 2 marks for a fully correct name or formula. Award 1 mark
     if the correct ions/elements are identified but the ratio (subscripts) or the Roman numeral
     is incorrect. Accept Cℓ or Cl.
  4. Equations: Award marks as indicated. Ignore phases. Accept multiples of the
     coefficients (e.g. 4H2 + 2O2 → 4H2 O), but NOT fractions in 8.2.
  5. Definitions: Accept equivalent wording that conveys the same meaning. Where key
     words are underlined, deduct 1 mark for EACH key word or phrase that is omitted.
  6. Negative marking: If a candidate must explain a choice and the choice is incorrect, no
     marks are awarded for the explanation.
  7. Lists: Where a specific number of answers is asked for, mark only the FIRST answers
     given, up to the number asked for.

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### Page 3

Technical Sciences/P2                         3                               Hlayiso/Mock 2026
                                   NSC – Marking Guidelines

QUESTION 1
1.1     B ✓✓                                                                                  (2)
1.2     B ✓✓                                                                                  (2)
1.3     C ✓✓                                                                                  (2)
1.4     D ✓✓                                                                                  (2)
1.5     A ✓✓                                                                                  (2)
1.6     C ✓✓                                                                                  (2)
1.7     B ✓✓                                                                                  (2)
1.8     D ✓✓                                                                                  (2)
1.9     D ✓✓                                                                                  (2)
1.10    A ✓✓                                                                                  (2)
                                                                                             [20]

QUESTION 2
2.1     A substance that consists of only one type of particle (only one element or only
        one compound). ✓✓                                                                     (2)
2.2     A pure substance consisting of two or more different elements that are
        chemically combined in a fixed ratio. ✓✓                                              (2)
2.3.1   Copper (wire) ✓; oxygen (gas) ✓                                                       (2)
2.3.2   Any TWO: Carbon dioxide / sugar (sucrose) / distilled water ✓✓                        (2)
2.3.3   Any TWO: Air / salt water / brass ✓✓                                                  (2)
2.4     HOMOGENEOUS ✓
        The composition is the same (uniform) throughout / the salt particles cannot
        be seen / only one phase is visible. ✓                                                (2)
2.5.1   Use a magnet to attract (pull out) the iron filings. ✓                                (1)
2.5.2   Add water to the mixture and stir to DISSOLVE the salt. ✓
        FILTER the mixture: the sand remains on the filter paper (residue). ✓
        EVAPORATE the water from the filtrate (salt solution) to obtain the salt crystals.
        ✓                                                                                     (3)
                                                                                             [16]

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### Page 4

Technical Sciences/P2                         4                               Hlayiso/Mock 2026
                                   NSC – Marking Guidelines

QUESTION 3
3.1.1   Type of material (of the rod) ✓                                                       (1)
3.1.2   Current (ammeter reading) / brightness of the bulb / electrical conductivity ✓        (1)
3.1.3   Any ONE: Length of the rod / thickness of the rod / same cell (battery) / same
        bulb / same circuit ✓                                                                 (1)
3.2     Which materials conduct electricity (best)?       OR     How does the type of
        material affect the current in the circuit? ✓✓
        1 mark for the independent and dependent variables; 1 mark for phrasing it as a
        question.                                                                             (2)
3.3     Copper ✓                                                                              (1)
3.4     Copper: METAL ✓
        Aluminium: METAL ✓
        Silicon: METALLOID ✓
        Sulphur: NON-METAL ✓                                                                  (4)
3.5     Carbon ✓                                                                              (1)
3.6     Any TWO: Shiny (lustrous) / malleable / ductile / good thermal conductors /
        high melting points / high density / sonorous ✓✓                                      (2)
3.7     Any TWO: It is a very good electrical conductor (low resistance) / it is ductile –
        can be drawn into thin wires / it does not corrode easily / it is flexible ✓✓         (2)
3.8     Any ONE: Computer chips (microchips) / solar cells (panels) / transistors /
        diodes / integrated circuits ✓                                                        (1)
3.9     Plastic is an electrical INSULATOR (does not conduct electricity). ✓
        It prevents the electrician from getting an electric shock. ✓                         (2)
                                                                                             [18]

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### Page 5

Technical Sciences/P2                           5                              Hlayiso/Mock 2026
                                     NSC – Marking Guidelines

QUESTION 4
4.1     A material that allows heat (thermal energy) to pass through it easily. ✓✓             (2)
4.2.1   Copper ✓
        Its drawing pin fell off first / in the shortest time (45 s). ✓                        (2)
4.2.2   To make it a fair test / only the type of material must change (they are controlled
        variables). ✓                                                                          (1)
4.3     Metals are good thermal conductors, so heat is transferred quickly to the food.
        ✓
        Wood/plastic are thermal insulators, so the handles stay cool and the cook
        does not get burnt. ✓                                                                  (2)
4.4     Glass wool is a (good) thermal insulator / traps air, which is a poor conductor.
        ✓
        It reduces the heat lost from the house through the ceiling and roof. ✓                (2)
4.5     (a) YES ✓        (b) NO ✓       (c) YES ✓        (d) NO ✓                              (4)
4.6     Any ONE: Electromagnets in scrapyard cranes / separating iron and steel from
        waste (recycling) / compasses / loudspeakers / electric motors / generators /
        fridge door seals / MRI machines ✓                                                     (1)
                                                                                              [14]

QUESTION 5
5.1     Protons ✓ and neutrons ✓                                                               (2)
5.2     The total number of protons and neutrons in the nucleus of an atom. ✓✓                 (2)
5.3.1   Atoms of the same element that have the same number of protons but a
        different number of neutrons. ✓✓                                                       (2)
5.3.2   (a) 17 ✓        (b) 18 ✓     (c) 17 ✓
        (d) 17 ✓        (e) 20 ✓     (f) 17 ✓                                                  (6)
5.3.3   The relative atomic mass is the (weighted) AVERAGE mass of the isotopes of
        chlorine ✓, taking into account the percentage (abundance) of each isotope
        found in nature. ✓                                                                     (2)
5.4.1   10 ✓                                                                                   (1)
5.4.2   CATION ✓                                                                               (1)
5.4.3   The magnesium atom LOSES ✓ TWO electrons (its two valence electrons). ✓                (2)
5.5.1   26 + 30 = 56 ✓                                                                         (1)
5.5.2   Iron ✓                                                                                 (1)
                                                                                              [20]

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### Page 6

Technical Sciences/P2                            6                                  Hlayiso/Mock 2026
                                      NSC – Marking Guidelines

QUESTION 6
6.1     The electrons in the outermost (highest) energy level of an atom. ✓✓                         (2)
6.2
         Energy
                              ↑↓ ↑     ↑   2p

                2s ↑↓

                1s ↑↓
        Criteria: Correct number of electrons (8) ✓; 1s, 2s and 2p sublevels in the correct order
        of increasing energy ✓; Hund’s rule and Pauli principle applied – two single electrons
        in separate 2p orbitals, paired electrons have opposite spins ✓.                             (3)
6.3.1   1s2 2s2 2p6 3s2 3p1 ✓✓
        1 mark for 1s2 2s2 2p6 ; 1 mark for 3s2 3p1 .                                                (2)
6.3.2   1s2 2s2 2p6 3s2 3p6 ✓✓
        If 3p5 (chlorine atom) is given: 1/2.                                                        (2)
6.4.1   3✓                                                                                           (1)
6.4.2   10 ✓                                                                                         (1)
6.5     Group 13 (III) ✓; Period 3 ✓                                                                 (2)
6.6     Alkali metals ✓                                                                              (1)
6.7     Argon has a FULL outer energy level (8 valence electrons / stable octet). ✓
        It does not need to lose, gain or share electrons. ✓                                         (2)
6.8     Both are in Group 1 ✓ and have ONE valence electron in their outer energy
        level (which they lose easily). ✓                                                            (2)
                                                                                                    [18]

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### Page 7

Technical Sciences/P2                           7                                    Hlayiso/Mock 2026
                                     NSC – Marking Guidelines

QUESTION 7
7.1     A negatively charged ion / an atom (or group of atoms) that has gained
        electrons. ✓✓                                                                               (2)
7.2.1   Sodium ✓ sulphate ✓                                                                         (2)
7.2.2   Ammonium ✓ chloride ✓                                                                       (2)
7.2.3   Copper(II) ✓ oxide ✓
        Accept cupric oxide. Copper oxide without (II): 1/2.                                        (2)
7.3.1   CaCℓ2 ✓✓                                                                                    (2)
7.3.2   K2 O ✓✓                                                                                     (2)
7.3.3   Fe(NO3 )3 ✓✓
        Correct ions but incorrect ratio or brackets omitted (e.g. FeNO3 ): 1/2.                    (2)
7.3.4   (NH4 )2 SO4 ✓✓
        Correct ions but incorrect ratio or brackets omitted (e.g. NH4 SO4 ): 1/2.                  (2)
7.4     Cation: Aℓ3+ ✓        Anion: Cℓ– ✓                                                         (2)
                                                                                                  [18]

QUESTION 8
8.1     In a chemical reaction, the total mass of the reactants is equal to the total mass
        of the products (mass is neither created nor destroyed). ✓✓                                 (2)
8.2.1   2H2 + O2 → 2H2 O ✓✓                                                                         (2)
8.2.2   4Aℓ + 3O2 → 2Aℓ2 O3 ✓✓                                                                      (2)
8.2.3   CH4 + 2O2 → CO2 + 2H2 O ✓✓                                                                  (2)
8.3     6✓                                                                                          (1)
8.4     Mg + 2HCℓ → MgCℓ2 + H2
        Reactants (Mg, HCℓ) ✓     Products (MgCℓ2 , H2 ) ✓     Balancing ✓                         (3)
                                                                                                  [12]

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### Page 8

Technical Sciences/P2                                            8                           Hlayiso/Mock 2026
                                                      NSC – Marking Guidelines

QUESTION 9
9.1     Heat is the energy that is transferred from a hotter object to a colder object ✓
        (because of a temperature difference); it is measured in joules (J). ✓
        Temperature is a measure of how hot or cold an object is / a measure of the
        average kinetic energy of the particles ✓; it is measured in ◦ C or K (with a
        thermometer). ✓                                                                                    (4)
9.2.1   T = 37 + 273 ✓
        T = 310 K ✓                                                                                        (2)
9.2.2   t = 77 – 273 ✓
        t = –196 ◦ C ✓                                                                                     (2)
9.3     Any ONE: Clinical thermometer / digital (electronic) thermometer / infrared (ear
        or forehead) thermometer ✓                                                                         (1)
9.4.1
                            80

        Temperature (◦ C)
                            60

                            40

                            20

                             0
                                 0       1       2         3      4      5
                                                     Time (min)
        Criteria: Both axes labelled correctly WITH units (temperature on the y-axis, time on
        the x-axis) ✓; appropriate scale – graph uses more than half of the grid ✓; ALL points
        plotted correctly ✓; straight line (of best fit) drawn through the points ✓.                       (4)
9.4.2   50 ◦ C ✓                     (accept 49 – 51 ◦ C, or the value read from the candidate’s graph)    (1)
                                                                                                          [14]
                                                                                                TOTAL:    150

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