Soil Science NCV Level 2 — Document FAL P1
November 2023 — NCV Level 2 — Soil Science
NCV Level 2
2023
NCV Agriculture
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Q1— Section header —
1.10\n the ANSWER BOOK.
1.1Nitrogen reduces lush vegetative plant growth.
1.2Warm air can hold more moisture than cold air.
1.3Charged atoms are called ions.
1.4When water seeps into cracks of rocks and freezes there, it causes rocks to break up.
1.5The a tomic number of an atom is equal to the sum of protons and electrons.
1.6The cohesive forces between clay particles are very weak.
1.7Calcium deficiency can cause plant leaves to curl.
1.8Matter has three states.
1.9Cobalt is one of the micro elements that plants require in a small quantity.
1.10
Q2— Section header —
2.10\n the ANSWER BOOK.
2.1It is made up of different substances that can be separated by physical process like distillation.
2.2The l oss of water from the stomata of leaves.
2.3Soil that is very smooth and sandy feeling.
2.4A substance found in soil which assist plants during the uptake of nutrients from the soil.
2.5The s haring of electrons to form a polar molecule.
2.6The direction at which the slope faces.
2.7Lack of nutrient in the soil. (1011002\ Copyright reserved Please turn over
2.8Loss of water in the form of water vapour at a temperature below boiling point.
2.9When a substance causes som ething to happen.
2.1010
Q3— Section header —
3.10\in the ANSWER BOOK.
3.1100 70
3.2The best time to take leaf samples for analysis is from the e nd of January until the
3.3The first energy level of an atom can hold these electrons only. 10
3.4These are warmer slopes that is why crop farmers in those areas deliver early crops.
3.5Plant nutrients in soil are made gas. elements. protons. nucleus
3.6Water that moves deeper into soil. Capillary Hygroscopic Gravitational Free water
3.7An element can be defined by its nergy levels. nucleus.
3.8Maize Legumes Carrots Spinach
3.9An atom which is number one n the periodic table. Oxygen. Hydrogen.
3.10Non scientific name for hydrochloric acid. Spirits of salts
Q4— Section header —
4.1What is soil? (2\
4.2In w hich phase does soil consist of mainly minerals and rocks. (1\
4.3Calculate the percentage of organic matter in a sample of soil with the following details: Mass 1 ( M1 = 2g, Mass 2 ( M2
4.4Give the name of the soil horizon suitable for each of the descriptions below
4.4.1Solid rock.
4.4.2Sub soil
4.4.3A layer of organic matter.
4.4.4Loose parent material.
4.4.5
4.5Farmers around your area only know about dark soil and red soils and how good these soil colours are in terms of crop production. Expand their knowledge by giving them the other THREE soil colours they
4.6Define the following soil scientific terms:
4.6.1Capillarity
4.6.2Eluviation
4.6.3Soil profile
4.6.4
4.7Draw a pie chart of an average composition of soil, indicating the percentages of the following soil components: air, liquid and solid only. (4\
4.8Explain why the factors of soil formation in the formula S = F(P R, Cl, O, T\ are equally important.
Q5— Section header —
5.1Study the symbol below and answer the following questions in the ANSWER BOOK. Source: https://www.rsc.org/periodic table/element FIGURE 1
5.1.1What is the name of the atom represented in FIGURE 1 (1\
5.1.2Which letter represent the atomic number of the atom as indicated in FIGURE 1. (2\
5.1.3What is the atomic number of this atom? (2\
5.1.4Which letter represent the mass number of this atom? (2\
5.1.5Name the type of chemical bonding that will cause this atom to react with sodium to form the compound
Q5— Section header —
5.2Study the diagram below and answer the questions that follow in the ANSWER BOOK. Source Macmillan soil science student book L2 FIGURE 2
5.2.1Name items 1 to 5 by writing only the answer next to the number ( \n the answer book. (5\
5.2.2Which process is being investigated in FIGURE 2 above? (1\
5.2.3Explain the process answered in QUESTION
5.2.2. (3\
5.3Name THREE particles of an atom (3\
5.4Answer the following questions based on water molecule
5.4.1Draw a Couper diagram of water molecule showing a bond angle of 105 (3\
5.4.2Is this a polar or a non polar molecule? (2\
5.4.3Give the molecular formula of water. (2\ [30] (1011002\ Copyright reserved Please turn over30
Q6— Section header —
6.1Study FIGURE 3 below and answer the questions that follow. Source Macmillan soil science student book L2
6.1.1Name the parts of the root labelled 3, 4 and 5 by writing only the answer next to the question number (3 5\n the ANSWER BOOK. (3\
6.1.2What is the function of the part numbered 4? (2\
6.1.3Which number represent the older root zone? (1\
6.1.4Part numbere d 2 is called the region (complete the sentence (1\
6.2Explain how suction is created by plant leaves (3\
6.3Mineral absorption by plant roots involves THREE absorption processes. Name them. (3\
6.4When farmers add nutrients in the soil for plants to absorb, they exclude hydrogen and oxygen, because plants get them from the sentence (1\
6.5Discuss FIVE functions of water in plant growth. (10\
6.6What would indicate to a farmer that a phosphorus deficiency is the problem with his crop (4\ 6.
Q7— Section header —
7.1Differentiate between:
7.1.1Diffusion and back diffusion.
7.1.2Dry bulb thermometer and wet bulb thermometer.
7.1.3
7.2Explain the statement the relative humidity in the store room is 70%. (3\
7.3FIGURE 4 below shows a blowing fan and two small beakers containing equal amount of water Briefly e xplain what will happen to the TWO beakers in the FIGURE. (3\
7.4What is vaporisation? (2\
7.5armers may use a number of mulching materials to reduce surface water loss through evaporation in their fields. Name FOUR of th
7.6What is transpiration? (2\ [30] TOTAL SECTION GRAND TOTAL: 120 1530
Topics Identified
1
Business Functions
Mark Allocation
Total120 marks
Sections10 + 10 + 10 + 30 + 30 + 30 + 30 = 150 marks
Key Information
Websitewww.rsc.org
Paper information
TitleDocument
SubjectSoil Science
LevelNCV Level 2
Document typeQuestion paper
Year2023
MonthNovember
Pages10
Downloads3
Examination context
Decade2020s
Years ago3y
SeasonSpring (SH)
Start dayWednesday
Exam periodNovember 2023
Days since exam1,075
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