- The amount of salt concentration in the containers
- The type of plant in the containers
- The amount of salt concentration in the container daily, over a course of 5 days in ppt/400 millilitres
- The amount of water in each container - 400 millilitres
- The environment in which the setups are placed in
- The timing in which the results are recorded daily
- The size of the container
- The duration in which the salinity sensor is dipped into the water
2.1 Equipment List
- Sodium Chloride (Sea Salt) - 90 grams
- Salinity Sensor - 1x
- Glass Rods - 1x
- Disposable Gloves - 6 pairs
- Plastic Containers - 60 containers
- Cling Wrap - 1 roll
- Water Quality with Vernier - 1x
- Deionised Water - 1 bottle
- Micranthemum Monte Carlo - 1x
- Lemnoideae - 1x
- Beaker - 1x
- Pond Water - 12 litres
Step 1: We put 30 set-up, 6 containers in 5 rows. Each of the 6 containers with the same salt concentration. The first row has 1 gram of sea salt, the second row has 2 grams of sea salt, the third row has 3 grams of sea salt, the fourth row has 4 grams of sea salt, and the fifth row has 5 grams of sea salt.
Step 2: We then poured 400 milliliters of the eco pond water into each of the plastic container containing different amount of salt.
Step 3: We place equal amounts of each plant after being weighed on a weighing scale into the first four containers (2 types of plants, 2 for each plant) and the last two containers are control setups.
Step 4: We use clingwrap the containers and poke some small hole to prevent any water from evaporation and affect our results but yet allowing the plants to live.
Step 5: We will use a Salinity Sensor to the salt proportion in the water daily from Monday to Friday, a course of 5 days.
Step 6: We will then observe the trend of the amount of salt concentration in each container.