Bye SRP :)

The SRP was a tough 6 months but its over...THANK GOD! Generally I learnt a lot from my research about Antifreeze, cars and even chemicals.

Ta Ta SRP :)

Risk Assessment

Identify the Risk
Inhalation of Antifreeze
Skin Contact with Antifreeze

Assess the Risk
Poisnous substance which can cause dizziness and other worse effects that may be permanent
Can cause skin irritation

Control the Risk

Wear a mask
Wear Protective Gear- long sleeved clothes and long pants, gloves, mask and goggles

Disposal
Do NOT throw in the bin or in the sink. hand to your nearest recycling centre for autmotive parts

Results

My testing officially ended on Friday. I collected all my results and I am posting the results for both trials


First Trial

Before Adding Antifreeze:
Control:8.9
Test 1:8.3
Test 2: 8.5
Test 3:8.2

After Adding Antifreeze:
Control:9.8
Test 1:6.8
Test 2:6.3
Test 3:7.5


Second Trial

Before Adding Antifreeze:
Control:9.1
Test 1:10.2
Test 2:11.0
Test 3:11.5

After Adding Antifreeze
Control:9.4
Test 1:9.5
Test 2:9.8
Test 3:10.6

Experiment Update

This is an overdue update but as I could not purchase and find any recyclable antifreeze, my hypothesis of the experiment has changed and become "That Antifreeze does have an effect on the environment"

As the days went by....

During the first 18 days of growing the grass, the colour was luscious green and tended to stay like that. After the antifreeze was poured, gradually in the 6 days, the colour began to slowly change. First the top bits of the grass turned into a yellowish colour. Then the yellow faded into something much lighter and more of the green lucious coloure turned into a mucky light green. The grass began to fall and observations of the grass slowly deteriorating was made.

SET UP ASSIGNMENT

Antifreeze Experiment and Climate Graph

Hey
My climate graph for some reason allowing it to be posted on this so I have sent it to Ms Zhang's email.

Equipment:

• 200 mL of water
• 5 Spray Bottles
• 5 10 x 14 x 5-cm. pans
• 5 of 250 mL Grass Seeds
• 2 100mL Antifreeze
• 1 100mL Recycled Antifreeze
• 5 4cm Pottting soils
• 5 0.25cm. Peat Moss
• 4 28cm of yearn
• 1 38 cm of yarn
• Ruler

Method:
Pans measuring 9.5x14x5cm should be filled with 4cm of soil. 250mm of grass seeds should be evenly sprinkled in the pan.  After a spray bottle has been filled with water, the spray bottle should be sprayed 40 times around the pan. The seeds must be  covered with 0.5cm of soil evenly. A light layer of peat moss should be over the soil and sprayed with water another 40 times. The four 29mm pieces of yarn should be used to wrap around the width of the pan 3cm apart. The one 38mm piece of yearn is wrapped around the length of the pan 3cm apart. The pan should be sprayed twice 40times evenly with water and these steps should be taken with three other pots. Two lamps with 60 watt bulbs should be placed above the pans (one on each side) and the growth should begin. This should continue for 18 days. After 18 days,  measure the height of the four intersections of the yarn. These measurements must be added up for each pan and the mean of grass height is calculated.  100mL of antifreeze should be mixed with 100mL of water to be sprayed over the first plant. This step should be taken with two other plants of two different antifreezes. The last pan will be the control pan and will have no antifreeze and instead be controlled with 200mL of water.  This will be continued for another 6 days. On day six, the height of the grass should be measured and recorded. The mean of the grasses should be recorded as well.

Pans measuring