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Prior Reading
click the button below to find out more about Herdsman Lake. Click on the links that show you food chains and food webs.
herdsmanlakedrains.pdf |
foodweb_herdsmanlake.pdf |
foodchains_lakes.pdf |
Data collection on the excursion and for your artificial ecosystem:
Practise using the following pieces of equipment:
- thermometer (in air, soil surface and at depth)
- universal indicator and a pH chart, or pH probes
- silver nitrate solution
- These pieces of equipment and tests will be used to measure abiotic factors of the ecosystems