IB Environmental Systems and Societies/Measuring abiotic components of the system

2.2 Measuring abiotic components of the system
2.2.1 List the significant abiotic (physical)factors of an ecosystem.
 * PH, Temperature, Light intensity, Salinity, Turbidity, Dissolved oxygen

2.2.2 Describe and evaluate methods for measuring at least three abiotic (physical) factors within an ecosystem.
 * PH - PH meter
 * Temperature - Thermometer (C degrees)
 * Dissolved oxygen - Oxygen meter (PPM)
 * Light intensity - Light meter (LUX)
 * Salinity - Salinity meter (ppt)
 * Turbidity - Secchi circle (Visibility)


 * marine—salinity, dissolved oxygen, wave action
 * freshwater—turbidity, temperature, dissolved oxygen
 * terrestrial—temperature,wind speed, particle size, slope, soil moisture, drainage, mineral content.