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A/L Technology Stream · Sri Lanka · NIE 2017

Bio Systems
Technology

Free notes, past papers, practical guides, lab reports and revision resources aligned with the Sri Lanka A/L Bio Systems Technology (BST) syllabus — covering climate science, soil science, water systems, aquaculture, food technology, automation, horticulture and agro-enterprise.

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19
Competencies
600
Hours
2
Grades
Free
Forever

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Competency 01 Grade 12 · Term 1 ⏱ 12 hrs 📥 Notes Available

Climatic Conditions for Bio Systems

දේශගුණික තත්ත්ව

Understanding climatic and meteorological factors that influence bio systems — rainfall, solar radiation, temperature, wind, humidity and atmospheric pressure. Setting up and operating weather monitoring stations.

📌 Sub-competencies / උප නිපුණතා
🌦️ Climate vs Weather
🌧️ Rainfall Measurement
☀️ Solar Radiation
🌡️ Temperature Monitoring
💨 Wind Speed & Direction
💧 Relative Humidity
🔭 Weather Station Setup
🤖 Automated Weather Stations
📊 Data Recording & Reporting
🔮 Weather Forecasting
⬇ Downloads — Competency 01
📄
Full Notes PDF
48 pages · 5.2 MB
⬇ Download PDF
Competency 02 Grade 12 · Term 1 ⏱ 28 hrs

Soil Properties in Bio Systems

පාංශු ගුණාංග

Physical, chemical and biological characteristics of soil. Soil pH, CEC, electrical conductivity, texture, structure and microbiology. Major Sri Lankan soil types — RBE, RYP, LHG and Laterite soils.

📌 Topics
🪨 Soil Physical Properties
⚗️ Chemical Properties & pH
🦠 Biological Properties
📏 Soil Texture & Structure
💧 Water Holding Capacity
⚡ Electrical Conductivity (EC)
🔄 Cation Exchange Capacity
🗺️ Sri Lanka Soil Types
🐛 Macro & Micro Organisms
⬇ Downloads — Competency 02
📄
Full Notes PDF
60 pages · 6.4 MB
⬇ Download PDF
📄
Soil Lab Practical Guide
24 pages · 2.8 MB
⬇ Download PDF
📄
Sri Lanka Soil Types
28 pages · 3.1 MB
⬇ Download PDF
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Competency 03 Grade 12 · Term 1 ⏱ 50 hrs

Land Surveying & Levelling

බිම් මැනීමේ

Plane table surveying, chain surveying, compass surveying, GPS, GIS, photogrammetry and levelling techniques. Field and office work, map drawing and area calculation.

📌 Topics
📐 Plane Table Surveying
⛓️ Chain Surveying
🧭 Compass Surveying
📡 GPS / GNSS
🗺️ GIS Basics
📸 Photogrammetry
📏 Levelling Methods
📈 Contour Maps
🔢 Area Calculation
⬇ Downloads — Competency 03
📄
Full Notes PDF
68 pages · 7.2 MB
⬇ Download PDF
📄
Field Practical Manual
32 pages · 3.4 MB
⬇ Download PDF
📊
Calculations Workbook
Excel · 0.9 MB
⬇ Download PDF
📄
Past Paper Questions
22 pages · 2.2 MB
⬇ Download PDF
Competency 04 Grade 12 · Term 1 ⏱ 08 hrs

Water Sources in Bio Systems

ජල ප්‍රභව

Surface and underground water sources, factors affecting water availability, rainwater harvesting systems and their structures.

📌 Topics
🏞️ Surface Water Sources
🌊 Underground Water
🌧️ Rainwater Harvesting
🏗️ Harvesting Structures
🔍 Site Selection Factors
💧 Water Requirements
⬇ Downloads — Competency 04
📄
Full Notes PDF
36 pages · 3.8 MB
⬇ Download PDF
Competency 05 Grade 12 · Term 1 ⏱ 22 hrs 📥 Notes Available

Water Quality Assessment

ජලය ගුණාත්මක

Physical, chemical and biological water quality parameters. BOD, COD, DO, turbidity, coliform testing. Water pollution sources, wastewater treatment stages and drinking water standards.

📌 Topics
🔬 Physical Parameters
⚗️ Chemical Parameters
🦠 Biological Parameters
📊 BOD / COD / DO
🏭 Water Pollution Sources
🔄 Wastewater Treatment
🚰 Drinking Water Standards
📋 Water Quality Lab Tests
⬇ Downloads — Competency 05
📄
Full Notes PDF
52 pages · 5.6 MB
⬇ Download PDF
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Competency 06 Grade 12 · Term 2 ⏱ 18 hrs

Commercial Plant Propagation

පැළ නිෂ්පාදනය

Sexual and asexual plant propagation methods. Grafting, budding, layering, micro-propagation (tissue culture), nursery management and commercial seedling production.

📌 Topics
🌱 Sexual Propagation
🌿 Asexual Propagation
✂️ Grafting Techniques
🔵 Air Layering
🧫 Micro-propagation
🪴 Nursery Management
📦 Seedling Grading
🚚 Transport & Standards
⬇ Downloads — Competency 06
📄
Full Notes PDF
46 pages · 5.0 MB
⬇ Download PDF
📄
Grafting & Budding Guide
24 pages · 2.6 MB
⬇ Download PDF
📄
Tissue Culture Notes
28 pages · 3.2 MB
⬇ Download PDF
Competency 07 Grade 12 · Term 2 ⏱ 22 hrs

Aquatic Bio-Resource Industry

Wiia ;dlaI‚l Ys,am l%u fhdÞ .k sñka c,c Ôj iïm;a l¾udk a;fha kshe

Ornamental and food fish culture, aquatic plant cultivation, breeding techniques, tank management, fish nutrition, disease control and market preparation.

📌 Topics
🐟 Ornamental Fish Farming
🐠 Food Fish Culture
🌿 Aquatic Plant Culture
🧬 Breeding Techniques
🍽️ Fish Nutrition
🏥 Disease Management
📦 Packaging for Market
⬇ Downloads — Competency 07
📄
Full Notes PDF
54 pages · 5.8 MB
⬇ Download PDF
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Competency 08 Grade 12 · Term 2 ⏱ 38 hrs

Animal Production Technology

Wiia ;dlaI‚l Ys,am l%u fhdÞ .k sñka i;a;aj ksIamdokfha kshe

Advanced poultry and cattle production systems. Egg incubation, broiler meat processing, commercial dairy industry, quality milk production and egg-based value-added products.

📌 Topics
🐔 Poultry Production Systems
🥚 Egg Incubation
🐄 Dairy Cattle Management
🥛 Milk Quality Standards
🍗 Broiler Meat Processing
💉 Animal Health Management
📊 Value-added Egg Products
⬇ Downloads — Competency 08
📄
Full Notes PDF
64 pages · 6.8 MB
⬇ Download PDF
Competency 09 Grade 12 · Term 3 ⏱ 65 hrs 📥 Notes Available

Quality Food Processing & Technology

.=Kd;aul wdydr ksIamdokh i|yd l%ufõo ie,iqï lrhs

Food spoilage factors, preservation methods (thermal, chemical, biological), food safety standards, HACCP, GMP, GAP, new food product development, packaging and food adulteration.

📌 Topics
🦠 Food Spoilage Factors
🌡️ Thermal Preservation
❄️ Cold Chain Methods
🔬 HACCP & GMP
🆕 New Product Development
📦 Food Packaging
🏷️ Food Labelling Laws
⚠️ Food Adulteration
✅ Quality Certification
🍽️ Sensory Evaluation
⬇ Downloads — Competency 09
📄
Full Notes PDF
80 pages · 8.2 MB
⬇ Download PDF
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Competency 10 Grade 12 · Term 3 ⏱ 15 hrs

Post-Harvest Technology

Wiia .=Kd;aul ksIamdok i|yd miq wiajk q ;dlaIK Ys,am l%u úu¾Ykh lrhs

Reducing post-harvest losses in paddy, fruits and vegetables. Maturity indices, storage, transportation and fish handling at various stages.

📌 Topics
🌾 Paddy Post-Harvest
🍎 Fruit Maturity Index
🥦 Vegetable Storage
🐟 Fish Handling
📉 Loss Minimisation
🚛 Transport Guidelines
⬇ Downloads — Competency 10
📄
Full Notes PDF
44 pages · 4.6 MB
⬇ Download PDF
📄
Practical Manual
18 pages · 2.0 MB
⬇ Download PDF
Competency 11 Grade 12 · Term 3 ⏱ 20 hrs

Protected Cultivation Technology

fnda. j.dj i`oyd md,s; mßir ;;a;aj Ndú;fha ;dlaIKh ms

Protected structures — types, construction and environmental control. Hydroponics, aquaponics and other soilless cultivation systems. Monitoring and controlling temperature, humidity and light.

📌 Topics
🏗️ Greenhouse Types & Construction
💧 Hydroponics Systems
🐟 Aquaponics
🌡️ Climate Control Inside
💡 Lighting Management
📐 Structure Design & Costing
⬇ Downloads — Competency 11
📄
Full Notes PDF
50 pages · 5.4 MB
⬇ Download PDF
📄
Hydroponics Guide
26 pages · 2.8 MB
⬇ Download PDF
📄
Greenhouse Construction
28 pages · 3.0 MB
⬇ Download PDF
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Competency 12 Grade 13 · Term 1 ⏱ 74 hrs 📥 Notes Available

Mechanisation & Irrigation Systems

hdka;%SllrKfha iQodku m%o¾Ykh lrhs

Water pumps, drip and sprinkler irrigation systems, land preparation equipment, small engines, tractors and plant protection equipment. Calculations for pump head, discharge and power.

📌 Topics
⚙️ Centrifugal Pumps
🔧 Piston Pumps
💧 Drip Irrigation
🌊 Sprinkler Systems
🚜 Tractors & Systems
🛠️ Land Preparation Tools
🌿 Sprayer Equipment
🔢 Pump Calculations
⚡ Power Requirements
⬇ Downloads — Competency 12
📄
Full Notes PDF
74 pages · 7.8 MB
⬇ Download PDF
Competency 13 Grade 13 · Term 1 ⏱ 26 hrs

Timber & Non-Timber Forest Products

;sridr f,i ±juh yd ±juh fkdjk ksIamdok mßfNdackh lsÍfï iQodku

Economically important timber species in Sri Lanka, timber grading, seasoning and preservation. Forest measurement (dendrometry), non-timber products — cosmetics, medicinal, bath & body care, decorative.

📌 Topics
🪵 Timber Species (Sri Lanka)
📊 Timber Grading Standards
🌡️ Wood Seasoning Methods
🔬 Timber Preservation
📏 Dendrometry Measurements
🌿 Non-Timber Forest Products
💄 Cosmetic Extracts
💊 Medicinal Products
⬇ Downloads — Competency 13
📄
Full Notes PDF
52 pages · 5.6 MB
⬇ Download PDF
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Competency 14 Grade 13 · Term 1 ⏱ 20 hrs

Plantation & Export Crop Products

WÑ; ;dlaI‚l Ys,am l%u Ndú;fhka jeú,s fnda. yd iq`M wmkhk fnda. wdY%s; ksIamdok ieliSu

Value-added processing of coconut, tea, rubber and minor export crops including spices (pepper and cinnamon). Processing steps, quality standards for export markets.

📌 Topics
🥥 Coconut Products
🍵 Tea Processing
🌳 Rubber Products
🌶️ Pepper Processing
🌿 Cinnamon Products
📊 Export Quality Standards
🏭 Value Addition Methods
⬇ Downloads — Competency 14
📄
Full Notes PDF
48 pages · 5.2 MB
⬇ Download PDF
Competency 15 Grade 13 · Term 2 ⏱ 72 hrs 📥 Notes Available

Process Control & Automation

ls%hdj,s md,kh yd iajhxl%ShlrK hdk a;%K f.dv kexùfï iQodku m%o¾Ykh lrhs

Electrical measurements, simple circuit construction, PLC systems, Arduino microcontrollers, sensors, actuators and automation systems for bio systems applications.

📌 Topics
⚡ Electrical Measurements
🔌 Circuit Construction
🤖 PLC Systems
🖥️ Arduino Board
📡 Sensors & Actuators
💡 Relay & Motor Control
🌡️ Temperature Controllers
💧 Automated Water Systems
🔢 Electrical Calculations
⬇ Downloads — Competency 15
📄
Full Notes PDF
70 pages · 7.4 MB
⬇ Download PDF
📄
Arduino Practical Guide
32 pages · 3.4 MB
⬇ Download PDF
📄
PLC Systems Notes
24 pages · 2.6 MB
⬇ Download PDF
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Competency 16 Grade 13 · Term 2 ⏱ 08 hrs

Occupational Safety & Health

úúO /l shdjkag wÞ< jD;a;Sh wdrl aIdj yd fi!LH ls %hdud¾. Ndú;d lsÍfï iQÞku

Workplace hazards in bio systems technology (physical, chemical, biological, ergonomic, psychosocial). Risk assessment, hazard control hierarchy and occupational safety regulations.

📌 Topics
⚠️ Physical Hazards
☣️ Chemical Hazards
🦠 Biological Hazards
🪑 Ergonomics
📋 Risk Assessment
🛡️ Hazard Control
⚖️ Safety Regulations
⬇ Downloads — Competency 16
📄
Full Notes PDF
36 pages · 3.8 MB
⬇ Download PDF
Competency 17 Grade 13 · Term 2 ⏱ 40 hrs 📥 Notes Available

Horticulture & Landscape Design

Wµdk úoHdfjys kshe

Cut flowers and ornamental foliage cultivation, post-harvest handling and market preparation. Landscape design principles, hard and soft landscape elements, installation and maintenance.

📌 Topics
🌸 Cut Flower Cultivation
🍃 Ornamental Foliage
💐 Floral Arrangements
🎨 Landscape Design Principles
🏗️ Hard Landscape Elements
🌳 Soft Landscape Elements
📐 Landscape Plans & Costings
✂️ Pruning & Maintenance
🌿 Lawn & Hedge Management
⬇ Downloads — Competency 17
📄
Full Notes PDF
62 pages · 6.4 MB
⬇ Download PDF
Competency 18 Grade 13 · Term 3 ⏱ 45 hrs

Sustainable Environmental Management

ffcj mo aO;sj, ;sridr ixj¾Okh i`oyd jeo.;a jk mßir ys;ldó l%fudamdhhka ms

Solid waste management, renewable energy production (solar, wind, bio-fuel), cleaner production technology, environmentally friendly agricultural practices and edible gardening.

📌 Topics
♻️ Solid Waste Management
☀️ Solar Energy
💨 Wind Energy
🌿 Bio-fuels
🏭 Cleaner Production
🌱 Edible Gardening
🐛 Biological Pesticides
📊 Energy from Waste
⬇ Downloads — Competency 18
📄
Full Notes PDF
64 pages · 6.8 MB
⬇ Download PDF
📄
Renewable Energy Notes
28 pages · 3.0 MB
⬇ Download PDF
📄
Waste Management Guide
22 pages · 2.4 MB
⬇ Download PDF
Competency 19 Grade 13 · Term 3 ⏱ 15 hrs 📥 Notes Available

Enterprise & Business Development

ksIamdok iy jHdmdr ixj¾Okh i|yd wjYH l=i,;d Èh qKq lr .k sh s

Entrepreneurship skills, SWOT analysis, business plan development, small enterprise management, logistics, documentation, micro-finance and regulatory compliance for bio-system enterprises.

📌 Topics
💡 Entrepreneurship Skills
📊 SWOT Analysis
📄 Business Plan Writing
🏦 Micro-Finance Options
⚖️ Regulatory Compliance
🚚 Logistics & Transport
📦 Market Research Methods
💰 Cost-Benefit Analysis
⬇ Downloads — Competency 19
📄
Full Notes PDF
42 pages · 4.4 MB
⬇ Download PDF
📝
Business Plan Template
Word · 1.4 MB
⬇ Download PDF
📄
SWOT & Market Analysis
18 pages · 2.0 MB
⬇ Download PDF
📄
Past Paper Questions
16 pages · 1.8 MB
⬇ Download PDF
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