Environmental Studies / Science: Local Inquiry and Basic Science
Environmental Studies / Science tests the candidate’s knowledge of the child’s immediate environment and basic science, plus the ability to teach through observation and inquiry. At the primary level, EVS integrates family, food, water, shelter, travel, plants, animals, health, and local resources; at the upper-primary level, science becomes more disciplinary.
Core concepts
- Living things need food, water, air, and suitable conditions; plants make food by photosynthesis, while animals depend on plants directly or indirectly.
- Food chains transfer energy; only about 10% passes to the next trophic level.
- Water changes state through evaporation, condensation, and precipitation; the water cycle is driven by solar energy.
- Matter has mass and occupies space; materials have properties such as hardness, solubility, and conductivity.
- Pedagogy: start from the learner’s local environment, use observation, questioning, prediction, and simple experiments; address misconceptions explicitly.
Worked example
In a food chain, grass → grasshopper → frog → snake, the grasshopper has 1,000 kJ of energy. Using the 10% rule, the frog receives about 100 kJ and the snake about 10 kJ. The loss is not waste in a moral sense; it is energy used in life processes and released as heat. This explains why food chains rarely have more than four or five trophic levels.
Traps
Do not say plants “eat soil”; they absorb mineral ions and water, but make food in leaves. Do not confuse respiration with photosynthesis: respiration releases energy in all living cells, day and night. Do not treat EVS as only facts; the exam rewards observation-based reasoning and local examples.