Variables:

The variables that needed to be controlled in my experiment was the area in which I collected my 2^nd set of samples for both water and soil had to be from the same area as the first area I collected the samples.

The equipment I needed for the collection of my samples was 3 water bottles for the water samples and 3 plastic containers for the soil samples. The equipment needed for the analysis of the samples was:

Test tubes, Data Logger, pH probe, Silver Nitrate, Turbidimeter, Phosphate strips, Oven, Beakers, funnel, filter paper, retort stand, distilled water, conductivity probe, mortar & pestle, evaporating basin.

A problem that arised when collecting samples was the poor weather which made it difficult to collect soil samples. A problem that arised when analysis of the samples was getting the equipment as other members in the class also needed the equipment.

Risk Assessment record

Results Table

Results table

Silver Nitrate Tests
The far left group of beakers are the water samples
The far right group of beakers are soil samples

Tonight i collected my second set of samples in the same areas which i collected my first set of samples, and i will conduct tests on them tomorow

This week I tested the water samples for Ph levels, Conductivity and phosphates and began testing my soil samples.

Today I collected samples from my chosen 'local environment'

-The red circles show where i retrieved soil samples,
-The blue circles show where i retrieved water samples

 Bronte Beach is where I will be taking samples from the water and soil.


Bronte Beach is a small but popular recreational beach on Nelson Bay in Bronte in the eastern suburbs of Sydney, Australia. Bronte beach is 2 kilometers south of Bondi Beach and north of the much larger Coogee Beach. A long distance ocean swimming event is held every December between Bondi Beach and Bronte. The three beaches are linked by a paved coastal footpath along the rocky clifftops, much frequented by tourists and local runners and walkers. The beach is popular with surfers and despite the often rough surf, less abled swimmers can avail themselves of the bogey hole or rock pool towards the southern end of the beach. At the south end of the beach is a 30 metre ocean pool, one of the best known in Sydney. Directly opposite the beach are popular cafes.

The beach is patrolled by volunteer lifeguards from the life saving club at the weekend and on public holidays. Bronte Surf Lifesaving Club is the oldest such organisation in the world, having been formed in 1903. A public park adjoins the beach, with provision of picnic seats and barbecue hotplates, although parking is limited and restrictions are strictly enforced. The beach is served by the number 378 Sydney City Bus from Sydney's Central railway station or the 378 bus from the Bondi Junction station. The beach is shaded by hills to the west and tends to become cool, windy and deserted towards the end of the afternoon.