Laboratory experiments in ecosystem ecology, ray optics, and physical wave phenomena form the core of Grade 9 Integrated Science throughout Term 3. The curriculum documents 41 sequential lessons across 10 pages, anchored by KLB Integrated Science Grade 9 (pages 115 to 195).
Students explore biological interactions and physical principles through inquiry-based lab stations and mathematical calculations:
- Ecosystem Interdependence: charting food chains, evaluating predator-prey dynamics, and examining root nodule symbiosis alongside parasitic plant associations in weeks 1 and 2.
- Curved Mirror Optics: constructing geometric ray diagrams for concave and convex spherical mirrors, calculating focal lengths, and investigating headlamp beam alignment across weeks 3 to 5.
- Wave Propagation: producing transverse and longitudinal pulses using slinky coils, timing wavefronts in ripple tanks, and measuring wave speed parameters in weeks 5 to 7.
- Telecommunications and Testing: discussing electromagnetic signal transmission via satellite and radar networks, solving wave equation problems, and completing terminal evaluations in week 8.
