1) A shovel and a ruler to measure the silt of the soil.2) A thermometer to measure temperature
3) A refractometer to measure salt content
4) A net used to collect aquatic organisms for the mini SASS investigation
5) Indicators were use test the pH of the water.
6) A water clarity tube to test the clarity of the water and a magnet.
7) An ice cream tub to keep the aquatic creatures and water in
8) A mini sass table Test for Silt Silt is defined as fine sand, clay or other material carried by running water and deposited as sediment, especially in a channel or harbour (https://www.dictionary.com). A large amount of silt in an area is an indication of a high level of pollution, therefore the results obtained determined whether the Amanzimnyama and Siyaya river catchments’ were polluted or not. Apparatus: ruler and a shovel Method:
Step 1: A ruler was used to measure 60cm from the water’s edge then 30 by 30 on the ground using a ruler.
Step 2: A shovel was used to dig a 30cm hole downwards (which was the size of the shovel plate/holder).
Step 3: The soil needed to be removed from the hole with a shovel, thereafter placed on the side.
Step 4: The ruler was placed inside the hole, on one side and from the bottom the length/amount of silt was measured; the soft part of the soil indicated the presence of silt in the soil.
Step 5: To test the silt we had to put our hands in the soil and feel how soft/hard the soil was and measure the length of soft/hard soil. Ethical issues: Once the measurements were recorded, the soil was put back into the hole to prevent the soil creatures from getting harmed. Limitations: The silt level was sometimes lengthy and required a ruler longer than 30cm, which made it hard for us the measure accurately