OUR PROJECT

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Mr Caleb Chua
Chan Hui Mui
Tan Shu Qin
Pui Pang Ping
Penny Tok
Wu Jiawen
Hillgrovians
Secondary 3
Weather Studies Project

150606 - 9 AM, outside staffroom
160606 -
170606 -
180606 -
190606 -
200606 -
210606 -
220606 - 9 AM, Macdoanlds
230606 -
240606 -
250606 -
260606 -
270606 -
280606 -
290606 - 3 o'clock, IT resource room
300606 -
010706 -
020706 -
030706 -
040706 -
050706 - Set up exhibition - concord
060706 - Technical run-through
070706 - 7 AM - 5 PM, concord primary
080706 - 10 AM, concord primary
090706 -
100706 -
110706 -
120706 -
130706 -

School's soil
Date	Color	Texure	Moisture
06/01/06	Light Brown	Coarse	Little
13/01/06	Brown	Coarse	Yes
20/01/06	Light Brown	Coarse	Little
27/01/06	Brown	Coarse	No
03/02/06	Yellowish Brown	Fine	Yes
10/02/06	Dark Brown	Fine	Yes
17/02/06	Dark Brown	Coarse	A lot
24/02/06	Light Brown	Fine	Little
03/03/06	Light Brown	Coarse	No
10/03/06	Brown	Coarse	No

Block 187's soil
Date	Color	Texure	Moisture
03/02/06	Pale Brown	Fine	Yes
10/02/06	Brown	Coarse	Yes
17/02/06	Brown	Coarse	Yes
24/02/06	Greenish Brown	Coarse	No
03/03/06	Greenish Brown	Coarse	No
10/03/06	Greenish Brown	Coarse	No

Block 217's soil
Date	Color	Texure	Moisture
03/02/06	Blackish Brown	Fine	No
10/02/06	Blackish Brown	Coarse	Yes
17/02/06	Blackish Brown	Coarse	Yes
24/02/06	Blackish Brown	Coarse	No
03/03/06	Blackish Brown	Coarse	No
10/03/06	Blackish Brown	Fine	Yes

Block 426's soil
Date	Color	Texure	Moisture
03/02/06	Brown	Fine	Little
10/02/06	Brown	Coarse	Yes
17/02/06	Brown	Fine	Little
24/02/06	Brown	Fine	No
03/03/06	Brown	Fine	No
10/03/06	Brown	Fine	No

Date	Avg. Temp	Avg. Rainfall	Wind Direction
31/12-06/01	26.23	20.17	WNW
07/01-13/01	25.59	37.7	NE
14/01-20/01	27.26	4.74	WNW
21/01-27/01	27.46	3.91	NE
28/01-03/02	28.21	0.26	NE
04/02-10/02	27.11	12.00	NE
11/02-17/02	27.84	2.66	NE
18/02-24/02	28.03	4.86	NE
25/02-03/03	28.71	3.11	NE
04/03-10/03	28.59	1.31	NE

pH meter''s result

Date	School	Block 187	Block 217	Block 426
03/02/06	4.46	6.24	6.74	7.62
10/02/06	4.56	5.61	5.47	8.05
17/02/06	5.53	5.61	6.18	7.90
24/02/06	4.46	6.21	6.50	8.74
03/03/06	4.53	6.80	6.30	8.68
10/03/06	5.56	6.34	7.08	8.45


Date	School	Blk 187	Blk 217
06/01/06	Light Brown	Coarse	Little
13/01/06	Brown	Coarse	Yes
20/01/06	Light Brown	Coarse	Little
27/01/06	Brown	Coarse	No
03/02/06	Yellowish Brown	Fine	Yes
10/02/06	Dark Brown	Fine	Yes
17/02/06	Dark Brown	Coarse	A lot
24/02/06	Light Brown	Fine	Little
03/03/06	Light Brown	Coarse	No
10/03/06	Brown	Coarse	No

Chemicals can be acidic, neutral or basic depending on how many hydrogen ions they have. Hydrogen ions are really just protons, a small particle that has a positive charge. Scientists can find out whether a chemical is acidic, neutral or basic by testing its pH. They use a special paper, called litmus paper, to do the pH test.

MORE FACTS

Acid solutions have a pH of less than 7 (and turns blue litmus paper red) A neutral has a pH of 7. Basic solutions has a pH more than 7 (and turns red litmus blue)

Do you know what pH stands for?

pH means power of hydrogen. Therefore, using litmus paper gives an idea of how much hydrogen or protons is in a solution.

What is an acid?

An acid is a chemical that has plenty of protons in solution. Protons have a positive charge this is what makes a solution acidic solution. Most acid chemicals have a sour taste. In fact, the word "acid" comes from the Latin word acidus which means "sour".
Examples of acids are: lemon juice and vinegar.

What is an alkali?

An alkali the opposite of an acid. It is a chemical that does not have a lot of protons in a solution. Instead, a basic solution which has the ability to accept plenty of protons. An alkalis is a base that can dissolve in water. Examples of alkali are: toothpaste and household cleaners

Testing for pH values

Paper
1. Red Litmus paper
2. Blue Litmus paper
3. Universal Indicator

Solutions
4. Phenolphthaein solution
5. Methyl Orange (pH 2.9-4.6)
6. Bromothymol blue (pH 6.0(yellow) to pH 7.6(blue)

Credits
www.cogltd.com

1. Wash apparatus with distilled water.
2. Put soil into beaker.

3. Add distilled water into beaker and stir.
4. Placed the folded filter paper on top of a new beaker.

5. Pour the mixture into the filtered paper.

6. Wait for mixture to be filtered.

7. Use a dropper to place various test solutions and paper into six different test tubes.
8. Use another dropper to place filtrate into the six test tubes.

9. Use tweezer to take tested paper out of the test tube to place in zip lock bag
10. Take pictures of tested solution.

[Soon, soon, soon]

School
Block 187
Block 217
Block 426
Tuas area
Jurong Island

Dirt on soil
Difference between dirt and soil
Soil pH

October 2005
November 2005
December 2005
January 2006
February 2006
March 2006
April 2006
May 2006
June 2006
July 2006

babyhilly@hotmail.com
or alternatively,
f4_chanhuimui@hotmail.com,
tanshuqin@hotmail.com,
classicjw@hotmail.com,
sophisticated-p@hotmail.com.
p.s please tag to inform us if you e-mailed.

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people have came, since 120206

Monday, May 29, 2006

MEETING
15th June. :D
9 AM RIGHT?