WBCHSE HS Environmental Science study plan
WBCHSE HS Environmental Science · Give each week a clear focus.
8 weeks · About 7 hours per week
Environmental pollution and control & Environmental Science: scope, components and ecosystems
Classify the seven major pollutant categories (air, water, soil, noise, thermal, radioactive, solid waste) and match each to its principal WBCHSE-level control measure
Trace the scope of environmental science from multidisciplinary foundations to ecosystem components, writing a one-page concept map linking biotic and abiotic factors
Solve 15 numerical problems on pollutant concentration (ppm, mg/L, BOD/COD relationships) showing full working
Build a personal error log of every misclassified pollutant-control pairing from week 1 practice
Your checkpoint
A two-page pollution taxonomy table with pollutant, source, effect, control measure, and one worked numerical example per row
Environmental pollution and control & Environmental physics, energy and climate
Explain the chemistry and health effects of the six criteria air pollutants and justify one control technology for each
Diagram the greenhouse effect and distinguish it from ozone depletion using labelled energy-flow sketches
Interpret BOD and COD data to judge organic load in a river case study and recommend a treatment stage
Calculate carbon footprint for a household scenario and compare it with a national average
Your checkpoint
A one-page climate-and-pollution briefing sheet with a labelled greenhouse diagram, BOD/COD worked example, and carbon-footprint calculation
Environmental Science: scope, components and ecosystems & Environmental biology and ecology
Compare five ecosystem types (forest, grassland, aquatic, wetland, agroecosystem) by energy flow, trophic structure, and productivity
Draw and annotate the carbon, nitrogen, and phosphorus cycles, marking the human perturbation in each
Apply the ten percent law and ecological pyramid concepts to solve energy-flow problems
Describe succession stages from pioneer to climax community with named examples
Your checkpoint
A hand-drawn set of three nutrient-cycle diagrams with human impacts annotated and one solved energy-flow problem attached to each
Natural resources and their conservation & Environmental biology and ecology
Categorise natural resources as renewable and non-renewable and justify the classification for ten contested examples
Explain soil erosion, waterlogging, and salinisation with their corrective measures
Describe the ecological and economic consequences of deforestation and groundwater over-extraction using Indian case examples
Apply concepts of carrying capacity and sustainable yield to a fishery or forest management scenario
Your checkpoint
A resource-conservation case-study write-up (500 words) on one Indian resource conflict, with a sustainability recommendation
Biodiversity and wildlife conservation & Environmental chemistry and toxicology
Define biodiversity at genetic, species, and ecosystem levels and locate India's biodiversity hotspots on a blank outline map
Explain in-situ and ex-situ conservation, naming protected area categories and one example of each
Describe biomagnification of a named persistent pollutant through a four-level food chain with a numerical illustration
Outline the toxicological concepts of dose-response, LD50, and chronic versus acute exposure with examples
Summarise the main provisions of the Wildlife Protection Act and Biological Diversity Act in note form
Your checkpoint
A labelled map of India's biodiversity hotspots plus a biomagnification calculation sheet with dose-response definitions
Environmental chemistry and toxicology & Environmental physics, energy and climate
Explain photochemical smog formation and acid rain chemistry step by step with equations
Compare conventional and non-conventional energy sources by efficiency, cost, and environmental impact
Describe radioactive pollution sources and safe disposal principles
Solve numerical problems on noise intensity in decibels and on energy conversion efficiency
Your checkpoint
A formula-and-equation revision card set covering smog, acid rain, decibel calculations, and energy efficiency
Environmental management, law and sustainable development & Field work, practical skills and project work
Outline the key Indian environmental legislation and the constitutional provisions supporting environmental protection
Explain Environmental Impact Assessment stages and the precautionary and polluter-pays principles
Design a field-survey protocol for measuring water quality or noise levels, specifying instruments, sampling frequency, and safety steps
Draft the structure of a project report: aim, methodology, observations, analysis, conclusion
Relate the Sustainable Development Goals to at least three Indian environmental programmes
Your checkpoint
A complete project report skeleton with a field protocol, data-recording table, and legal-framework summary
Environmental Science: scope, components and ecosystems & Natural resources and their conservation & Biodiversity and wildlife conservation & Environmental pollution and control & Environmental chemistry and toxicology & Environmental biology and ecology & Environmental physics, energy and climate & Environmental management, law and sustainable development & Field work, practical skills and project work
Sit two full-length mock papers under timed conditions and score them against the marking scheme
Rework every error from the mocks into corrected notes within 24 hours
Recite from memory the definitions, formulae, and legislation names most often asked across all domains
Complete and self-evaluate the field-work deliverable against the practical marking criteria
Your checkpoint
Two scored mock papers with a corrected error log and a final one-page formula-and-facts sheet
Milestones
Week 2: Can list all seven pollutant categories with a control measure each and correctly solve 12 of 15 concentration numericals unaided
Week 4: Can draw the carbon and nitrogen cycles from memory and explain three Indian resource-conservation cases without notes
Week 6: Scores at least 60 percent on a self-made 40-question test covering domains 3, 4, 5, and 7
Week 8: Scores at least 65 percent on both timed mock papers and has a zero-gap corrected error log across all nine domains