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Read the mind map as text Stores / transfers Conservation: Energy in J; closed-system total unchanged; eight storesPathways: Mechanical, electrical, heating and radiation transfersDissipation: Energy spreads / becomes less useful, not destroyedGPE / kinetic: ΔGPE = mgΔh; kinetic = ½mv²; double speed → fourfold KEEfficiency: Useful ÷ total; 25 J of 100 J = 25%; reduce unwanted heatingHeating Temperature: Not energy; energy generally transfers hot → coldConduction: Neighbour particles / free electrons transfer energyConvection: Warm fluid usually rises; cool fluid sinksRadiation: Infrared needs no medium; travels through vacuumInsulation: Low conductivity / thick walls; larger ΔT raises transfer rateReduce losses: Trap air; limit convection / draughts; reflective surfacesFinite resources Fossil fuels: Coal / oil / gas replaced too slowly; combustion heats turbinesImpacts: CO₂, air pollution, extraction / habitat damageNuclear: Non-renewable; low operational CO₂, waste / decommissioning costsRenewables Sources: Wind, solar, tides, hydro, geothermal and sustainable biofuelsTransfer routes: Moving wind / falling water drive generators; solar cells differContext: Geothermal location matters; biofuel lifecycle emissions matterReliability: Wind / solar variable; tides predictable; stored hydro responsiveEvaluate: Cost, availability, habitats, waste, demand; use supplied evidenceConnections Stores / transfers → Heating: Insulation reduces unwanted energy transfers. Finite resources → Renewables: Energy-source choices balance reliability and impacts. 