The Vertical Bag Garden
Grow sukuma wiki, spinach, and managu in a recycled gunny sack — zero cost, zero land required. Includes a step-by-step guide, 4-level KNEC rubric, and the perforated bottle drip trick that doubles yield. Perfect SBA evidence: photo on Day 1 and Day 21.
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The Vertical Bag Garden
Gunny sack + soil + perforated bottle = a full vegetable tower. Full SBA rubric included.
Mini Compost Pit — 21-Day Challenge
Turn kitchen waste into black gold. Layers, turning schedule, and ready-to-use compost.
Seed Germination Under Different Conditions
Controlled experiment: test how light, water, and temperature affect bean seed germination.
Water Filtration System
Build a multi-layer filter from gravel, sand, and charcoal. Test turbidity before and after.
DIY Solar Water Heater
Black-painted bottles + transparent bag = water heated by the sun. Measure temperature rise.
Newspaper Cone Nursery Beds
Roll newspaper into biodegradable nursery cones — transplant directly into soil, no shock.
Simple Electric Motor
Build a spinning coil motor using insulated copper wire, a magnet, and a battery.
Natural pH Indicator from Hibiscus
Extract purple pigment from hibiscus flowers. Test household substances and create a colour pH chart.
Wind Vane & Weather Station
Build a wind direction vane from cardboard and a straw. Record 7 days of weather data.
First Aid Kit & Emergency Response Plan
Assemble a complete first aid kit from household items. Create an emergency plan for your home or school.
Plant Propagation: Grafting & Cuttings
Learn stem cuttings (easy) and cleft grafting (advanced). Multiply your favourite plants.
Hydroponics System (Soilless Farming)
Grow lettuce and spinach without soil using recycled containers and homemade nutrient solution.
Series & Parallel Circuits
Build and compare both circuit types. Learn why homes use parallel wiring and Christmas lights use series.
Soap Making (Cold Process)
Make natural soap from local oils (coconut, palm, shea). Learn saponification chemistry and entrepreneurship.
Water Quality Testing
Test pH, turbidity, hardness, chlorine, and iron in drinking water. Compare multiple water sources.
Arduino Soil Moisture Sensor
Build a smart watering alarm using Arduino. Beginner-friendly coding and wiring guide included.
Biogas Mini Digester
Turn kitchen waste into flammable methane gas. Build a small-scale anaerobic digester from recycled materials.
DNA Extraction from Banana
Extract and see real DNA using dish soap, salt, and cold alcohol. No lab equipment needed!
Fermentation - Yoghurt Making
Make probiotic-rich yoghurt using lactic acid bacteria. Learn the science of fermentation.