Problems that arised during the investigation

During the hand in week of the investigation i was sick, and this resulted in being out of school for 1 week. I have an extension until next Monday to hand in everything and finish my blog. Tomorrow i will collect my water and soil samples to due some more testing for the rest of the week and finish my report that i had already started.

topography

Sydney's urban area is in a coastal basin, which is bordered by the Pacific Ocean to the East, the Blue Mountains to the West, the Hawkesbury River to the North and the Royal National Park to the South. It lies on a submergent coastline, where the ocean level has risen to flood deep river valleys (ria) carved in the hawkesbury sandstone. Port Jackson, better known as Sydney Harbour, is one such ria and is the largest natural harbour in the world.[23] The Sydney area is not affected by significant earthquakes. The urban area has around 70 harbour and ocean beaches, including the famous Bondi Beach. Sydney's urban area covers 1,687 km2 (651 sq mi) as at 2001.[24] The Sydney Statistical Division, used for census data, is the unofficial metropolitan area [25] and covers 12,145 km2 (4,689 sq mi).[26] This area includes the Central Coast, the Blue Mountains, and national parks and other unurbanised land. This makes Sydney the third largest urban agglomeration in the world (with a population of over 3 million) behind Brasília (14,400 km²) and Tokyo (13,500 km²).[27]
Geographically, Sydney lies over two regions: the Cumberland Plain, a relatively flat region lying to the south and west of the harbour, and the Hornsby Plateau, a sandstone plateau lying mainly to the north of the harbour and dissected by steep valleys. The parts of the city with the oldest European development are located in the flat areas south of the harbour. The North Shore was slower to develop because of its hilly topography and lack of access across the harbour. The Sydney Harbour Bridge was opened in 1932 and linked the North Shore to the rest of the city.

Problems that arised during the investigation

First problem that i had was went i first collected my soil samples and forgot to bring a permanent marker instead i had to use a pen that faded. Then for water samples i also forgot the permanent marker and i had to use a key to mark the numbers on the top of the lid.

When taking the water samples i also came across a problem because i took a water sample from the main pond in the Botanical gardens and before i read a sign to watch out for the eels. I then took a lot a caution after reading that sign and took my water samples very quickly.

Also being a boarding it was hard to go out and collect the samples because the boarding staff must of believed that we were doing something else. To over come this problem we i had to get 3 people to come with me and collect the water and soil samples.

Another problem was carrying the water and soil samples around the park this is why i did not take the water samples from varies places because it was just to hard with nerve damage in one shoulder carrying 4 times 1.5L of water around was pretty hard.

Map of Botanical Gardens

Safety report

Presence of salt in water

Sample 1:
1-2 drops and it was very cloudy.

Sample 2:
1-2 drops and then it became cloudy.

Sample 3:
1-3 drops

Sample 4:
After 6 drops it begins to get cloudy, but 15 drops it becomes very cloudy and you cannot see it.

Phosphate testing

On friday during class i testing the phosphate in the water. My results were the following:

Sample 1:
10
Sample 2:
10
Sample 3:
15
Sample 4:
In between 10-15.